#0A3240#0A3240

#0A3240 is a dark, muted cyan. Relative luminance 0.027; OKLCH L 29.7% C 0.050 H 225.9°. Best body text is #FFFFFF at 13.61:1 contrast (WCAG AA passes).

Color values

HEX	#0A3240
RGB	rgb(10, 50, 64)
HSL	hsl(196, 73%, 15%)
HSV	hsv(196, 84%, 25%)
CMYK	cmyk(84.4%, 21.9%, 0%, 74.9%)
CIE-LAB	lab(18.87, -7.99, -12.72)
CIE-LCH	lch(18.87, 15.02, 237.85°)
OKLab	oklab(29.72% -0.0345 -0.0356)
OKLCH	oklch(29.72% 0.05 225.9)
XYZ	xyz(2.1908, 2.7156, 5.2582)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3240 #40180A

analogous

#0A4033 #0A3240 #0A1740

triadic

#0A3240 #400A32 #32400A

tetradic

#0A3240 #330A40 #40180A #17400A

square

#0A3240 #330A40 #40180A #17400A

split-complementary

#0A3240 #400A17 #40330A

monochromatic

#04151A #04151A #0A3240 #125B75 #1B85AA

Accessibility & contrast

On white

13.61

#0A3240 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#0A3240 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3240

13.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3240	#FFFFFF	#000000	##FFFFFF
##0A3240	1.00	13.61	1.54	13.61
#FFFFFF	13.61	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3141

Deuteranopia (green-blind)

#232C40

Tritanopia (blue-blind)

#003637

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #0a3240;
/* rgb */ color: rgb(10, 50, 64);
/* oklch */ color: oklch(29.7% 0.050 225.9);

Tailwind

colors: {
  custom: {
    50: '#536974',
    500: '#0a3240',
    950: '#000000',
  },
}

SCSS

$custom: #0a3240;
$custom-light: #536974;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3240",
  "rgb": {
    "r": 10,
    "g": 50,
    "b": 64
  },
  "hsl": {
    "h": 195.556,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.29724,
    "c": 0.0496,
    "h": 225.9
  },
  "luminance": 0.02716
}

Semantic roles & 50–950 ramp

primary

#0A3240

secondary

#7D3F29

accent

#6838F0

background

#F5F6F7

surface

#E8EBED

border

#C4C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #0A3240

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

Preview Lab → · Contrast checker → · Palette generator →