#0B283C#0B283C

#0B283C is a dark, muted cyan. Relative luminance 0.019; OKLCH L 26.6% C 0.051 H 242.4°. Best body text is #FFFFFF at 15.18:1 contrast (WCAG AA passes).

Color values

HEX	#0B283C
RGB	rgb(11, 40, 60)
HSL	hsl(204, 69%, 14%)
HSV	hsv(204, 82%, 24%)
CMYK	cmyk(81.7%, 33.3%, 0%, 76.5%)
CIE-LAB	lab(15.03, -2.70, -15.91)
CIE-LCH	lch(15.03, 16.14, 260.38°)
OKLab	oklab(26.61% -0.0235 -0.045)
OKLCH	oklch(26.61% 0.051 242.4)
XYZ	xyz(1.7121, 1.9148, 4.5534)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B283C #3C1F0B

analogous

#0B3C38 #0B283C #0B103C

triadic

#0B283C #3C0B28 #283C0B

tetradic

#0B283C #380B3C #3C1F0B #103C0B

square

#0B283C #380B3C #3C1F0B #103C0B

split-complementary

#0B283C #3C0B10 #3C380B

monochromatic

#05111A #05111A #0B283C #144A70 #1E6DA3

Accessibility & contrast

On white

15.18

#0B283C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#0B283C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B283C

15.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B283C	#FFFFFF	#000000	##FFFFFF
##0B283C	1.00	15.18	1.38	15.18
#FFFFFF	15.18	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F283D

Deuteranopia (green-blind)

#18243C

Tritanopia (blue-blind)

#002D2F

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #0b283c;
/* rgb */ color: rgb(11, 40, 60);
/* oklch */ color: oklch(26.6% 0.051 242.4);

Tailwind

colors: {
  custom: {
    50: '#526171',
    500: '#0b283c',
    950: '#000000',
  },
}

SCSS

$custom: #0b283c;
$custom-light: #526171;
$custom-dark: #000000;

JSON

{
  "hex": "#0b283c",
  "rgb": {
    "r": 11,
    "g": 40,
    "b": 60
  },
  "hsl": {
    "h": 204.49,
    "s": 69.014,
    "l": 13.922
  },
  "oklch": {
    "l": 0.26611,
    "c": 0.05075,
    "h": 242.4
  },
  "luminance": 0.01915
}

Semantic roles & 50–950 ramp

primary

#0B283C

secondary

#794A2A

accent

#843CEC

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020507

muted

#78797A

Preview Lab

Preview with #0B283C

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

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