Codes & values
- Color Name
Dark Blue - Color ID
KDF-C-00000139 - HEX
#00008B - RGB
rgb(0, 0, 139) - RGBA
rgba(0, 0, 139, 1) - HSL
hsl(240, 100%, 27%) - HSLA
hsla(240, 100%, 27%, 1) - HSV / HSB
hsv(240, 100%, 55%) - CMYK
cmyk(100%, 100%, 0%, 45%) - Light / Dark
dark
Quick answers
- What is the HEX code for Dark Blue?
- #00008B
- What is Dark Blue RGB?
- rgb(0, 0, 139)
- What is Dark Blue HSL?
- hsl(240, 100%, 27%)
- What is Dark Blue CMYK?
- cmyk(100%, 100%, 0%, 45%)
What is Dark Blue?
Dark Blue is a curated blue family color at #00008B. It appears in our library with tags for web, design, ui and matches the CSS named color keyword. This shade classifies as dark — strong for text, dark-mode surfaces, or dramatic branding. Temperature lean: cool — calmer, often used for tech, healthcare, and finance trust..
Dark Blue HEX code
The HEX code for Dark Blue is #00008B. Paste it into CSS as color: #00008B; or background-color: #00008B;. Design tools accept the same six-digit value without the # prefix (00008b).
Dark Blue RGB
Dark Blue in RGB is rgb(0, 0, 139) (channels R 0, G 0, B 139). Use RGB when you need opacity via rgba(0, 0, 139, 1).
Dark Blue HSL & HSV
HSL is hsl(240, 100%, 27%) — useful for generating lighter/darker variants by adjusting lightness. HSV/HSB is hsv(240, 100%, 55%), closer to how many digital pickers expose hue, saturation, and brightness.
Dark Blue CMYK
Approximate CMYK for Dark Blue is cmyk(100%, 100%, 0%, 45%). Screen HEX/RGB values are device-dependent; for print, always soft-proof in your print profile rather than relying on a web conversion alone.
Shades of Dark Blue
Darker shades (mixed toward black): #000074, #00005D, #000046, #00002E, #000017. Use deeper shades for hover states, borders, and dark-mode accents.
Tints of Dark Blue
Lighter tints (mixed toward white): #2B2B9E, #5555B2, #8080C5, #AAAAD8, #D5D5EC. Tints work well for soft backgrounds, chips, and secondary buttons.
Colors that go with Dark Blue
Complementary pairing: #00008B, #8B8B00. Analogous neighbors: #00458B, #00008B, #45008B. Triadic accents: #00008B, #8B0000, #008B00. Always check text contrast when pairing.
Dark Blue color combinations
A practical combo: primary #00008B, complementary accent #8B8B00, and a neutral charcoal or off-white for text and surfaces. Split-complementary options: #00008B, #8B4600, #468B00.
Dark Blue in web design
Blue remains the default trust color for SaaS, finance, and health UI. Royal and navy blues anchor headers; sky blues soften backgrounds and links.
Dark Blue in branding
Brand blues communicate reliability. Royal blue and navy remain corporate staples; electric blue reads more startup. Contrast vs white is 15.30:1 (passes WCAG AA for normal text); vs black 1.37:1.
Frequently asked questions
- What is the HEX code for Dark Blue?
- Dark Blue: #00008B.
- What is Dark Blue RGB?
- Dark Blue: rgb(0, 0, 139).
- What is Dark Blue HSL?
- Dark Blue: hsl(240, 100%, 27%).
- What is Dark Blue CMYK?
- Dark Blue: cmyk(100%, 100%, 0%, 45%).
- What colors go with Dark Blue?
- Try complementary #00008B, #8B8B00 or analogous #00458B, #00008B, #45008B.
- Is Dark Blue good for text on white?
- Yes — contrast 15.30:1 meets WCAG AA for normal text.
Accessibility snapshot
Contrast vs white: 15.30:1 (AA body text pass). Contrast vs black: 1.37:1. Complementary swatch: #00008B, #8B8B00.
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