#103D51#103D51

#103D51 is a dark, muted cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.059 H 231.7°. Best body text is #FFFFFF at 11.61:1 contrast (WCAG AA passes).

Color values

HEX	#103D51
RGB	rgb(16, 61, 81)
HSL	hsl(198, 67%, 19%)
HSV	hsv(198, 80%, 32%)
CMYK	cmyk(80.2%, 24.7%, 0%, 68.2%)
CIE-LAB	lab(23.81, -7.37, -16.46)
CIE-LCH	lch(23.81, 18.03, 245.87°)
OKLab	oklab(34% -0.0366 -0.0463)
OKLCH	oklch(34% 0.059 231.7)
XYZ	xyz(3.3670, 4.0413, 8.3856)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103D51 #512410

analogous

#105145 #103D51 #101D51

triadic

#103D51 #51103D #3D5110

tetradic

#103D51 #451051 #512410 #1D5110

square

#103D51 #451051 #512410 #1D5110

split-complementary

#103D51 #51101D #514510

monochromatic

#05131A #06171E #103D51 #1A6384 #248AB7

Accessibility & contrast

On white

11.61

#103D51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#103D51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103D51

11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103D51	#FFFFFF	#000000	##FFFFFF
##103D51	1.00	11.61	1.81	11.61
#FFFFFF	11.61	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333C52

Deuteranopia (green-blind)

#2A3651

Tritanopia (blue-blind)

#004244

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #103d51;
/* rgb */ color: rgb(16, 61, 81);
/* oklch */ color: oklch(34.0% 0.059 231.7);

Tailwind

colors: {
  custom: {
    50: '#597282',
    500: '#103d51',
    950: '#000000',
  },
}

SCSS

$custom: #103d51;
$custom-light: #597282;
$custom-dark: #000000;

JSON

{
  "hex": "#103d51",
  "rgb": {
    "r": 16,
    "g": 61,
    "b": 81
  },
  "hsl": {
    "h": 198.462,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.33996,
    "c": 0.05898,
    "h": 231.7
  },
  "luminance": 0.04042
}

Semantic roles & 50–950 ramp

primary

#103D51

secondary

#8B4D32

accent

#733EEA

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #103D51

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

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