#0A2240#0A2240

#0A2240 is a dark, moderate cyan. Relative luminance 0.016; OKLCH L 25.2% C 0.064 H 255.6°. Best body text is #FFFFFF at 15.96:1 contrast (WCAG AA passes).

Color values

HEX	#0A2240
RGB	rgb(10, 34, 64)
HSL	hsl(213, 73%, 15%)
HSV	hsv(213, 84%, 25%)
CMYK	cmyk(84.4%, 46.9%, 0%, 74.9%)
CIE-LAB	lab(13.10, 3.31, -21.78)
CIE-LCH	lch(13.10, 22.03, 278.64°)
OKLab	oklab(25.17% -0.016 -0.0622)
OKLCH	oklch(25.17% 0.064 255.6)
XYZ	xyz(1.6223, 1.5786, 5.0687)
Luminance	0.0158 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A2240 #40280A

analogous

#0A3D40 #0A2240 #0D0A40

triadic

#0A2240 #400A22 #22400A

tetradic

#0A2240 #400A3D #40280A #0A400D

square

#0A2240 #400A3D #40280A #0A400D

split-complementary

#0A2240 #400D0A #3D400A

monochromatic

#040E1A #040E1A #0A2240 #123E75 #1B5AAA

Accessibility & contrast

On white

15.96

#0A2240 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#0A2240 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2240

15.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A2240	#FFFFFF	#000000	##FFFFFF
##0A2240	1.00	15.96	1.32	15.96
#FFFFFF	15.96	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#142441

Deuteranopia (green-blind)

#0B1F3F

Tritanopia (blue-blind)

#00292D

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #0a2240;
/* rgb */ color: rgb(10, 34, 64);
/* oklch */ color: oklch(25.2% 0.064 255.6);

Tailwind

colors: {
  custom: {
    50: '#525c75',
    500: '#0a2240',
    950: '#000000',
  },
}

SCSS

$custom: #0a2240;
$custom-light: #525c75;
$custom-dark: #000000;

JSON

{
  "hex": "#0a2240",
  "rgb": {
    "r": 10,
    "g": 34,
    "b": 64
  },
  "hsl": {
    "h": 213.333,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.25166,
    "c": 0.06425,
    "h": 255.6
  },
  "luminance": 0.01579
}

Semantic roles & 50–950 ramp

primary

#0A2240

secondary

#7D5829

accent

#9E38F0

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #0A2240

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

Preview Lab → · Contrast checker → · Palette generator →