#0A233B#0A233B

#0A233B is a dark, muted cyan. Relative luminance 0.016; OKLCH L 25.1% C 0.055 H 250.2°. Best body text is #FFFFFF at 15.95:1 contrast (WCAG AA passes).

Color values

HEX	#0A233B
RGB	rgb(10, 35, 59)
HSL	hsl(209, 71%, 14%)
HSV	hsv(209, 83%, 23%)
CMYK	cmyk(83.1%, 40.7%, 0%, 76.9%)
CIE-LAB	lab(13.12, 0.32, -18.23)
CIE-LCH	lch(13.12, 18.23, 271.00°)
OKLab	oklab(25.07% -0.0186 -0.0518)
OKLCH	oklch(25.07% 0.055 250.2)
XYZ	xyz(1.5153, 1.5822, 4.3624)
Luminance	0.0158 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A233B #3B220A

analogous

#0A3B3A #0A233B #0A0A3B

triadic

#0A233B #3B0A23 #233B0A

tetradic

#0A233B #3A0A3B #3B220A #0A3B0A

square

#0A233B #3A0A3B #3B220A #0A3B0A

split-complementary

#0A233B #3B0A0A #3B3A0A

monochromatic

#04101A #04101A #0A233B #13426F #1C61A4

Accessibility & contrast

On white

15.95

#0A233B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#0A233B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A233B

15.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A233B	#FFFFFF	#000000	##FFFFFF
##0A233B	1.00	15.95	1.32	15.95
#FFFFFF	15.95	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18243C

Deuteranopia (green-blind)

#11203B

Tritanopia (blue-blind)

#00292C

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #0a233b;
/* rgb */ color: rgb(10, 35, 59);
/* oklch */ color: oklch(25.1% 0.055 250.2);

Tailwind

colors: {
  custom: {
    50: '#515d71',
    500: '#0a233b',
    950: '#000000',
  },
}

SCSS

$custom: #0a233b;
$custom-light: #515d71;
$custom-dark: #000000;

JSON

{
  "hex": "#0a233b",
  "rgb": {
    "r": 10,
    "g": 35,
    "b": 59
  },
  "hsl": {
    "h": 209.388,
    "s": 71.014,
    "l": 13.529
  },
  "oklch": {
    "l": 0.25074,
    "c": 0.05506,
    "h": 250.2
  },
  "luminance": 0.01582
}

Semantic roles & 50–950 ramp

primary

#0A233B

secondary

#785028

accent

#923AEE

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #0A233B

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

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