#0A2F4A#0A2F4A

#0A2F4A is a dark, moderate cyan. Relative luminance 0.026; OKLCH L 29.5% C 0.064 H 244.9°. Best body text is #FFFFFF at 13.83:1 contrast (WCAG AA passes).

Color values

HEX	#0A2F4A
RGB	rgb(10, 47, 74)
HSL	hsl(205, 76%, 16%)
HSV	hsv(205, 86%, 29%)
CMYK	cmyk(86.5%, 36.5%, 0%, 71%)
CIE-LAB	lab(18.33, -1.75, -20.37)
CIE-LCH	lch(18.33, 20.44, 265.10°)
OKLab	oklab(29.47% -0.027 -0.0578)
OKLCH	oklch(29.47% 0.064 244.9)
XYZ	xyz(2.3772, 2.5917, 6.8522)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A2F4A #4A250A

analogous

#0A4A45 #0A2F4A #0A0F4A

triadic

#0A2F4A #4A0A2F #2F4A0A

tetradic

#0A2F4A #450A4A #4A250A #0F4A0A

square

#0A2F4A #450A4A #4A250A #0F4A0A

split-complementary

#0A2F4A #4A0A0F #4A450A

monochromatic

#04111B #04111B #0A2F4A #115180 #1973B6

Accessibility & contrast

On white

13.83

#0A2F4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#0A2F4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2F4A

13.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A2F4A	#FFFFFF	#000000	##FFFFFF
##0A2F4A	1.00	13.83	1.52	13.83
#FFFFFF	13.83	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22304B

Deuteranopia (green-blind)

#192A49

Tritanopia (blue-blind)

#003639

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #0a2f4a;
/* rgb */ color: rgb(10, 47, 74);
/* oklch */ color: oklch(29.5% 0.064 244.9);

Tailwind

colors: {
  custom: {
    50: '#55677c',
    500: '#0a2f4a',
    950: '#000000',
  },
}

SCSS

$custom: #0a2f4a;
$custom-light: #55677c;
$custom-dark: #000000;

JSON

{
  "hex": "#0a2f4a",
  "rgb": {
    "r": 10,
    "g": 47,
    "b": 74
  },
  "hsl": {
    "h": 205.313,
    "s": 76.19,
    "l": 16.471
  },
  "oklch": {
    "l": 0.29473,
    "c": 0.06385,
    "h": 244.9
  },
  "luminance": 0.02592
}

Semantic roles & 50–950 ramp

primary

#0A2F4A

secondary

#875129

accent

#8535F3

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#030609

muted

#787A7B

Preview Lab

Preview with #0A2F4A

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

Preview Lab → · Contrast checker → · Palette generator →