#103E51#103E51

#103E51 is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.3% C 0.058 H 229.8°. Best body text is #FFFFFF at 11.48:1 contrast (WCAG AA passes).

Color values

HEX	#103E51
RGB	rgb(16, 62, 81)
HSL	hsl(198, 67%, 19%)
HSV	hsv(198, 80%, 32%)
CMYK	cmyk(80.2%, 23.5%, 0%, 68.2%)
CIE-LAB	lab(24.16, -8.01, -15.91)
CIE-LCH	lch(24.16, 17.82, 243.27°)
OKLab	oklab(34.28% -0.0377 -0.0447)
OKLCH	oklch(34.28% 0.058 229.8)
XYZ	xyz(3.4209, 4.1491, 8.4035)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103E51 #512310

analogous

#105144 #103E51 #101E51

triadic

#103E51 #51103E #3E5110

tetradic

#103E51 #441051 #512310 #1E5110

square

#103E51 #441051 #512310 #1E5110

split-complementary

#103E51 #51101E #514410

monochromatic

#05141A #06171E #103E51 #1A6584 #248CB7

Accessibility & contrast

On white

11.48

#103E51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#103E51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103E51

11.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103E51	#FFFFFF	#000000	##FFFFFF
##103E51	1.00	11.48	1.83	11.48
#FFFFFF	11.48	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343D52

Deuteranopia (green-blind)

#2B3751

Tritanopia (blue-blind)

#004344

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #103e51;
/* rgb */ color: rgb(16, 62, 81);
/* oklch */ color: oklch(34.3% 0.058 229.8);

Tailwind

colors: {
  custom: {
    50: '#597382',
    500: '#103e51',
    950: '#000000',
  },
}

SCSS

$custom: #103e51;
$custom-light: #597382;
$custom-dark: #000000;

JSON

{
  "hex": "#103e51",
  "rgb": {
    "r": 16,
    "g": 62,
    "b": 81
  },
  "hsl": {
    "h": 197.538,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.34276,
    "c": 0.05849,
    "h": 229.8
  },
  "luminance": 0.04149
}

Semantic roles & 50–950 ramp

primary

#103E51

secondary

#8B4C32

accent

#703EEA

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #103E51

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

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