#0A233A#0A233A

#0A233A is a dark, muted cyan. Relative luminance 0.016; OKLCH L 25.0% C 0.053 H 249.2°. Best body text is #FFFFFF at 15.98:1 contrast (WCAG AA passes).

Color values

HEX	#0A233A
RGB	rgb(10, 35, 58)
HSL	hsl(209, 71%, 13%)
HSV	hsv(209, 83%, 23%)
CMYK	cmyk(82.8%, 39.7%, 0%, 77.3%)
CIE-LAB	lab(13.06, -0.12, -17.62)
CIE-LCH	lch(13.06, 17.62, 269.60°)
OKLab	oklab(25% -0.019 -0.05)
OKLCH	oklch(25% 0.054 249.2)
XYZ	xyz(1.4896, 1.5719, 4.2271)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A233A #3A210A

analogous

#0A3A39 #0A233A #0A0B3A

triadic

#0A233A #3A0A23 #233A0A

tetradic

#0A233A #390A3A #3A210A #0B3A0A

square

#0A233A #390A3A #3A210A #0B3A0A

split-complementary

#0A233A #3A0A0B #3A390A

monochromatic

#05101A #05101A #0A233A #13426E #1C62A2

Accessibility & contrast

On white

15.98

#0A233A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#0A233A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A233A

15.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A233A	#FFFFFF	#000000	##FFFFFF
##0A233A	1.00	15.98	1.31	15.98
#FFFFFF	15.98	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19243B

Deuteranopia (green-blind)

#12203A

Tritanopia (blue-blind)

#00282B

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #0a233a;
/* rgb */ color: rgb(10, 35, 58);
/* oklch */ color: oklch(25.0% 0.053 249.2);

Tailwind

colors: {
  custom: {
    50: '#515d70',
    500: '#0a233a',
    950: '#000000',
  },
}

SCSS

$custom: #0a233a;
$custom-light: #515d70;
$custom-dark: #000000;

JSON

{
  "hex": "#0a233a",
  "rgb": {
    "r": 10,
    "g": 35,
    "b": 58
  },
  "hsl": {
    "h": 208.75,
    "s": 70.588,
    "l": 13.333
  },
  "oklch": {
    "l": 0.25004,
    "c": 0.0535,
    "h": 249.2
  },
  "luminance": 0.01572
}

Semantic roles & 50–950 ramp

primary

#0A233A

secondary

#774E28

accent

#903AED

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #0A233A

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

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