#0A3741#0A3741

#0A3741 is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.2% C 0.050 H 216.3°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#0A3741
RGB	rgb(10, 55, 65)
HSL	hsl(191, 73%, 15%)
HSV	hsv(191, 85%, 25%)
CMYK	cmyk(84.6%, 15.4%, 0%, 74.5%)
CIE-LAB	lab(20.74, -10.78, -10.51)
CIE-LCH	lch(20.74, 15.06, 224.28°)
OKLab	oklab(31.25% -0.04 -0.0293)
OKLCH	oklch(31.25% 0.05 216.3)
XYZ	xyz(2.4451, 3.1783, 5.4846)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3741 #41140A

analogous

#0A4130 #0A3741 #0A1C41

triadic

#0A3741 #410A37 #37410A

tetradic

#0A3741 #300A41 #41140A #1C410A

square

#0A3741 #300A41 #41140A #1C410A

split-complementary

#0A3741 #410A1C #41300A

monochromatic

#04161B #04161B #0A3741 #126476 #1A91AB

Accessibility & contrast

On white

12.84

#0A3741 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#0A3741 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3741

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3741	#FFFFFF	#000000	##FFFFFF
##0A3741	1.00	12.84	1.64	12.84
#FFFFFF	12.84	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303542

Deuteranopia (green-blind)

#293041

Tritanopia (blue-blind)

#003B3A

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #0a3741;
/* rgb */ color: rgb(10, 55, 65);
/* oklch */ color: oklch(31.2% 0.050 216.3);

Tailwind

colors: {
  custom: {
    50: '#546e75',
    500: '#0a3741',
    950: '#000000',
  },
}

SCSS

$custom: #0a3741;
$custom-light: #546e75;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3741",
  "rgb": {
    "r": 10,
    "g": 55,
    "b": 65
  },
  "hsl": {
    "h": 190.909,
    "s": 73.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.31246,
    "c": 0.04958,
    "h": 216.3
  },
  "luminance": 0.03179
}

Semantic roles & 50–950 ramp

primary

#0A3741

secondary

#7E3829

accent

#5938F0

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030708

muted

#787A7B

Preview Lab

Preview with #0A3741

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

Preview Lab → · Contrast checker → · Palette generator →