#0A3E4E#0A3E4E

#0A3E4E is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.0% C 0.058 H 223.9°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#0A3E4E
RGB	rgb(10, 62, 78)
HSL	hsl(194, 77%, 17%)
HSV	hsv(194, 87%, 31%)
CMYK	cmyk(87.2%, 20.5%, 0%, 69.4%)
CIE-LAB	lab(23.87, -10.01, -14.40)
CIE-LCH	lch(23.87, 17.54, 235.18°)
OKLab	oklab(33.95% -0.042 -0.0404)
OKLCH	oklch(33.95% 0.058 223.9)
XYZ	xyz(3.2224, 4.0594, 7.8200)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3E4E #4E1A0A

analogous

#0A4E3C #0A3E4E #0A1C4E

triadic

#0A3E4E #4E0A3E #3E4E0A

tetradic

#0A3E4E #3C0A4E #4E1A0A #1C4E0A

square

#0A3E4E #3C0A4E #4E1A0A #1C4E0A

split-complementary

#0A3E4E #4E0A1C #4E3C0A

monochromatic

#03161B #03161B #0A3E4E #116984 #1894BA

Accessibility & contrast

On white

11.59

#0A3E4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#0A3E4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3E4E

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3E4E	#FFFFFF	#000000	##FFFFFF
##0A3E4E	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353C4F

Deuteranopia (green-blind)

#2C364E

Tritanopia (blue-blind)

#004343

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #0a3e4e;
/* rgb */ color: rgb(10, 62, 78);
/* oklch */ color: oklch(34.0% 0.058 223.9);

Tailwind

colors: {
  custom: {
    50: '#57737f',
    500: '#0a3e4e',
    950: '#000000',
  },
}

SCSS

$custom: #0a3e4e;
$custom-light: #57737f;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3e4e",
  "rgb": {
    "r": 10,
    "g": 62,
    "b": 78
  },
  "hsl": {
    "h": 194.118,
    "s": 77.273,
    "l": 17.255
  },
  "oklch": {
    "l": 0.33953,
    "c": 0.05827,
    "h": 223.9
  },
  "luminance": 0.0406
}

Semantic roles & 50–950 ramp

primary

#0A3E4E

secondary

#8B4029

accent

#6134F4

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #0A3E4E

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

Preview Lab → · Contrast checker → · Palette generator →