#0A3042#0A3042

#0A3042 is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.3% C 0.053 H 233.6°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#0A3042
RGB	rgb(10, 48, 66)
HSL	hsl(199, 74%, 15%)
HSV	hsv(199, 85%, 26%)
CMYK	cmyk(84.8%, 27.3%, 0%, 74.1%)
CIE-LAB	lab(18.24, -5.84, -15.06)
CIE-LCH	lch(18.24, 16.15, 248.79°)
OKLab	oklab(29.26% -0.0312 -0.0424)
OKLCH	oklch(29.26% 0.053 233.6)
XYZ	xyz(2.1651, 2.5715, 5.5354)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3042 #421C0A

analogous

#0A4238 #0A3042 #0A1442

triadic

#0A3042 #420A30 #30420A

tetradic

#0A3042 #380A42 #421C0A #14420A

square

#0A3042 #380A42 #421C0A #14420A

split-complementary

#0A3042 #420A14 #42380A

monochromatic

#04131B #04131B #0A3042 #125777 #1A7DAC

Accessibility & contrast

On white

13.87

#0A3042 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#0A3042 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3042

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3042	#FFFFFF	#000000	##FFFFFF
##0A3042	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273043

Deuteranopia (green-blind)

#202A42

Tritanopia (blue-blind)

#003536

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #0a3042;
/* rgb */ color: rgb(10, 48, 66);
/* oklch */ color: oklch(29.3% 0.053 233.6);

Tailwind

colors: {
  custom: {
    50: '#536876',
    500: '#0a3042',
    950: '#000000',
  },
}

SCSS

$custom: #0a3042;
$custom-light: #536876;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3042",
  "rgb": {
    "r": 10,
    "g": 48,
    "b": 66
  },
  "hsl": {
    "h": 199.286,
    "s": 73.684,
    "l": 14.902
  },
  "oklch": {
    "l": 0.29255,
    "c": 0.05267,
    "h": 233.6
  },
  "luminance": 0.02572
}

Semantic roles & 50–950 ramp

primary

#0A3042

secondary

#7F4429

accent

#7337F0

background

#F5F6F7

surface

#E8EBED

border

#C4C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #0A3042

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

Preview Lab → · Contrast checker → · Palette generator →