#103D5C#103D5C

#103D5C is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.6% C 0.072 H 243.4°. Best body text is #FFFFFF at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#103D5C
RGB	rgb(16, 61, 92)
HSL	hsl(204, 70%, 21%)
HSV	hsv(204, 83%, 36%)
CMYK	cmyk(82.6%, 33.7%, 0%, 63.9%)
CIE-LAB	lab(24.39, -2.91, -22.77)
CIE-LCH	lch(24.39, 22.95, 262.73°)
OKLab	oklab(34.64% -0.0324 -0.0646)
OKLCH	oklch(34.64% 0.072 243.4)
XYZ	xyz(3.8134, 4.2199, 10.7367)
Luminance	0.0422 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103D5C #5C2F10

analogous

#105C55 #103D5C #10175C

triadic

#103D5C #5C103D #3D5C10

tetradic

#103D5C #55105C #5C2F10 #175C10

square

#103D5C #55105C #5C2F10 #175C10

split-complementary

#103D5C #5C1017 #5C5510

monochromatic

#05111A #071A28 #103D5C #196090 #2282C4

Accessibility & contrast

On white

11.39

#103D5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#103D5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103D5C

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103D5C	#FFFFFF	#000000	##FFFFFF
##103D5C	1.00	11.39	1.84	11.39
#FFFFFF	11.39	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3E5D

Deuteranopia (green-blind)

#24375B

Tritanopia (blue-blind)

#004548

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #103d5c;
/* rgb */ color: rgb(16, 61, 92);
/* oklch */ color: oklch(34.6% 0.072 243.4);

Tailwind

colors: {
  custom: {
    50: '#5b728a',
    500: '#103d5c',
    950: '#000000',
  },
}

SCSS

$custom: #103d5c;
$custom-light: #5b728a;
$custom-dark: #000000;

JSON

{
  "hex": "#103d5c",
  "rgb": {
    "r": 16,
    "g": 61,
    "b": 92
  },
  "hsl": {
    "h": 204.474,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.34645,
    "c": 0.07223,
    "h": 243.4
  },
  "luminance": 0.0422
}

Semantic roles & 50–950 ramp

primary

#103D5C

secondary

#955B33

accent

#833BED

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070B

muted

#797A7C

Preview Lab

Preview with #103D5C

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

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