#0A283C#0A283C

#0A283C is a dark, muted cyan. Relative luminance 0.019; OKLCH L 26.6% C 0.051 H 241.8°. Best body text is #FFFFFF at 15.20:1 contrast (WCAG AA passes).

Color values

HEX	#0A283C
RGB	rgb(10, 40, 60)
HSL	hsl(204, 71%, 14%)
HSV	hsv(204, 83%, 24%)
CMYK	cmyk(83.3%, 33.3%, 0%, 76.5%)
CIE-LAB	lab(15.00, -2.87, -15.97)
CIE-LCH	lch(15.00, 16.23, 259.81°)
OKLab	oklab(26.57% -0.0242 -0.0451)
OKLCH	oklch(26.57% 0.051 241.8)
XYZ	xyz(1.6993, 1.9082, 4.5528)
Luminance	0.0191 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A283C #3C1E0A

analogous

#0A3C37 #0A283C #0A0F3C

triadic

#0A283C #3C0A28 #283C0A

tetradic

#0A283C #370A3C #3C1E0A #0F3C0A

square

#0A283C #370A3C #3C1E0A #0F3C0A

split-complementary

#0A283C #3C0A0F #3C370A

monochromatic

#04111A #04111A #0A283C #134B70 #1B6EA5

Accessibility & contrast

On white

15.20

#0A283C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#0A283C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A283C

15.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A283C	#FFFFFF	#000000	##FFFFFF
##0A283C	1.00	15.20	1.38	15.20
#FFFFFF	15.20	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.20	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: #0a283c;
/* rgb */ color: rgb(10, 40, 60);
/* oklch */ color: oklch(26.6% 0.051 241.8);

Tailwind

colors: {
  custom: {
    50: '#516171',
    500: '#0a283c',
    950: '#000000',
  },
}

SCSS

$custom: #0a283c;
$custom-light: #516171;
$custom-dark: #000000;

JSON

{
  "hex": "#0a283c",
  "rgb": {
    "r": 10,
    "g": 40,
    "b": 60
  },
  "hsl": {
    "h": 204,
    "s": 71.429,
    "l": 13.725
  },
  "oklch": {
    "l": 0.26573,
    "c": 0.05124,
    "h": 241.8
  },
  "luminance": 0.01908
}

Semantic roles & 50–950 ramp

primary

#0A283C

secondary

#794928

accent

#823AEE

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020507

muted

#78797A

Preview Lab

Preview with #0A283C

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

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