#0B243F#0B243F

#0B243F is a dark, muted cyan. Relative luminance 0.017; OKLCH L 25.7% C 0.060 H 252.7°. Best body text is #FFFFFF at 15.69:1 contrast (WCAG AA passes).

Color values

HEX	#0B243F
RGB	rgb(11, 36, 63)
HSL	hsl(211, 70%, 15%)
HSV	hsv(211, 83%, 25%)
CMYK	cmyk(82.5%, 42.9%, 0%, 75.3%)
CIE-LAB	lab(13.78, 1.52, -19.99)
CIE-LCH	lch(13.78, 20.05, 274.36°)
OKLab	oklab(25.68% -0.0178 -0.0569)
OKLCH	oklch(25.68% 0.06 252.7)
XYZ	xyz(1.6658, 1.6916, 4.9404)
Luminance	0.0169 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B243F #3F260B

analogous

#0B3E3F #0B243F #0C0B3F

triadic

#0B243F #3F0B24 #243F0B

tetradic

#0B243F #3F0B3E #3F260B #0B3F0C

square

#0B243F #3F0B3E #3F260B #0B3F0C

split-complementary

#0B243F #3F0C0B #3E3F0B

monochromatic

#050F1A #050F1A #0B243F #144273 #1D60A7

Accessibility & contrast

On white

15.69

#0B243F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#0B243F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B243F

15.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B243F	#FFFFFF	#000000	##FFFFFF
##0B243F	1.00	15.69	1.34	15.69
#FFFFFF	15.69	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#182640

Deuteranopia (green-blind)

#10213E

Tritanopia (blue-blind)

#002A2E

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #0b243f;
/* rgb */ color: rgb(11, 36, 63);
/* oklch */ color: oklch(25.7% 0.060 252.7);

Tailwind

colors: {
  custom: {
    50: '#525e74',
    500: '#0b243f',
    950: '#000000',
  },
}

SCSS

$custom: #0b243f;
$custom-light: #525e74;
$custom-dark: #000000;

JSON

{
  "hex": "#0b243f",
  "rgb": {
    "r": 11,
    "g": 36,
    "b": 63
  },
  "hsl": {
    "h": 211.154,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.25684,
    "c": 0.05964,
    "h": 252.7
  },
  "luminance": 0.01692
}

Semantic roles & 50–950 ramp

primary

#0B243F

secondary

#7C542A

accent

#973BED

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #0B243F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →