#0A3243#0A3243

#0A3243 is a dark, muted cyan. Relative luminance 0.028; OKLCH L 29.9% C 0.053 H 230.9°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#0A3243
RGB	rgb(10, 50, 67)
HSL	hsl(198, 74%, 15%)
HSV	hsv(198, 85%, 26%)
CMYK	cmyk(85.1%, 25.4%, 0%, 73.7%)
CIE-LAB	lab(19.02, -6.76, -14.53)
CIE-LCH	lch(19.02, 16.03, 245.04°)
OKLab	oklab(29.89% -0.0332 -0.0409)
OKLCH	oklch(29.89% 0.053 230.9)
XYZ	xyz(2.2785, 2.7507, 5.7200)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3243 #431B0A

analogous

#0A4338 #0A3243 #0A1543

triadic

#0A3243 #430A32 #32430A

tetradic

#0A3243 #380A43 #431B0A #15430A

square

#0A3243 #380A43 #431B0A #15430A

split-complementary

#0A3243 #430A15 #43380A

monochromatic

#04141B #04141B #0A3243 #125A78 #1A81AE

Accessibility & contrast

On white

13.55

#0A3243 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#0A3243 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3243

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3243	#FFFFFF	#000000	##FFFFFF
##0A3243	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293144

Deuteranopia (green-blind)

#222C43

Tritanopia (blue-blind)

#003738

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #0a3243;
/* rgb */ color: rgb(10, 50, 67);
/* oklch */ color: oklch(29.9% 0.053 230.9);

Tailwind

colors: {
  custom: {
    50: '#536977',
    500: '#0a3243',
    950: '#000000',
  },
}

SCSS

$custom: #0a3243;
$custom-light: #536977;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3243",
  "rgb": {
    "r": 10,
    "g": 50,
    "b": 67
  },
  "hsl": {
    "h": 197.895,
    "s": 74.026,
    "l": 15.098
  },
  "oklch": {
    "l": 0.29893,
    "c": 0.05262,
    "h": 230.9
  },
  "luminance": 0.02751
}

Semantic roles & 50–950 ramp

primary

#0A3243

secondary

#804329

accent

#6E37F1

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #0A3243

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

Preview Lab → · Contrast checker → · Palette generator →