#0A3040#0A3040

#0A3040 is a dark, muted cyan. Relative luminance 0.025; OKLCH L 29.1% C 0.050 H 230.5°. Best body text is #FFFFFF at 13.91:1 contrast (WCAG AA passes).

Color values

HEX	#0A3040
RGB	rgb(10, 48, 64)
HSL	hsl(198, 73%, 15%)
HSV	hsv(198, 84%, 25%)
CMYK	cmyk(84.4%, 25%, 0%, 74.9%)
CIE-LAB	lab(18.14, -6.68, -13.85)
CIE-LCH	lch(18.14, 15.37, 244.26°)
OKLab	oklab(29.14% -0.0321 -0.0389)
OKLCH	oklch(29.14% 0.05 230.5)
XYZ	xyz(2.1072, 2.5484, 5.2303)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3040 #401A0A

analogous

#0A4035 #0A3040 #0A1540

triadic

#0A3040 #400A30 #30400A

tetradic

#0A3040 #350A40 #401A0A #15400A

square

#0A3040 #350A40 #401A0A #15400A

split-complementary

#0A3040 #400A15 #40350A

monochromatic

#04141A #04141A #0A3040 #125875 #1B7FAA

Accessibility & contrast

On white

13.91

#0A3040 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#0A3040 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3040

13.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3040	#FFFFFF	#000000	##FFFFFF
##0A3040	1.00	13.91	1.51	13.91
#FFFFFF	13.91	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282F41

Deuteranopia (green-blind)

#212A40

Tritanopia (blue-blind)

#003435

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #0a3040;
/* rgb */ color: rgb(10, 48, 64);
/* oklch */ color: oklch(29.1% 0.050 230.5);

Tailwind

colors: {
  custom: {
    50: '#536875',
    500: '#0a3040',
    950: '#000000',
  },
}

SCSS

$custom: #0a3040;
$custom-light: #536875;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3040",
  "rgb": {
    "r": 10,
    "g": 48,
    "b": 64
  },
  "hsl": {
    "h": 197.778,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.29139,
    "c": 0.05045,
    "h": 230.5
  },
  "luminance": 0.02549
}

Semantic roles & 50–950 ramp

primary

#0A3040

secondary

#7D4229

accent

#6F38F0

background

#F4F6F7

surface

#E8EBED

border

#C4C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #0A3040

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

Preview Lab → · Contrast checker → · Palette generator →