#0D283B#0D283B

#0D283B is a dark, muted cyan. Relative luminance 0.019; OKLCH L 26.6% C 0.048 H 242.4°. Best body text is #FFFFFF at 15.18:1 contrast (WCAG AA passes).

Color values

HEX	#0D283B
RGB	rgb(13, 40, 59)
HSL	hsl(205, 64%, 14%)
HSV	hsv(205, 78%, 23%)
CMYK	cmyk(78%, 32.2%, 0%, 76.9%)
CIE-LAB	lab(15.05, -2.74, -15.18)
CIE-LCH	lch(15.05, 15.42, 259.76°)
OKLab	oklab(26.63% -0.0224 -0.0428)
OKLCH	oklch(26.63% 0.048 242.4)
XYZ	xyz(1.7139, 1.9187, 4.4169)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0D283B #3B200D

analogous

#0D3B37 #0D283B #0D113B

triadic

#0D283B #3B0D28 #283B0D

tetradic

#0D283B #370D3B #3B200D #113B0D

square

#0D283B #370D3B #3B200D #113B0D

split-complementary

#0D283B #3B0D11 #3B370D

monochromatic

#061119 #061119 #0D283B #184A6D #236C9F

Accessibility & contrast

On white

15.18

#0D283B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#0D283B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0D283B

15.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0D283B	#FFFFFF	#000000	##FFFFFF
##0D283B	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)

#1F283C

Deuteranopia (green-blind)

#19243B

Tritanopia (blue-blind)

#002D2F

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #0d283b;
/* rgb */ color: rgb(13, 40, 59);
/* oklch */ color: oklch(26.6% 0.048 242.4);

Tailwind

colors: {
  custom: {
    50: '#526171',
    500: '#0d283b',
    950: '#000000',
  },
}

SCSS

$custom: #0d283b;
$custom-light: #526171;
$custom-dark: #000000;

JSON

{
  "hex": "#0d283b",
  "rgb": {
    "r": 13,
    "g": 40,
    "b": 59
  },
  "hsl": {
    "h": 204.783,
    "s": 63.889,
    "l": 14.118
  },
  "oklch": {
    "l": 0.26631,
    "c": 0.04831,
    "h": 242.4
  },
  "luminance": 0.01919
}

Semantic roles & 50–950 ramp

primary

#0D283B

secondary

#774C2D

accent

#8541E7

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020507

muted

#78797A

Preview Lab

Preview with #0D283B

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

Preview Lab → · Contrast checker → · Palette generator →