#103E5C#103E5C

#103E5C is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.9% C 0.071 H 242.0°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#103E5C
RGB	rgb(16, 62, 92)
HSL	hsl(204, 70%, 21%)
HSV	hsv(204, 83%, 36%)
CMYK	cmyk(82.6%, 32.6%, 0%, 63.9%)
CIE-LAB	lab(24.73, -3.57, -22.23)
CIE-LCH	lch(24.73, 22.52, 260.87°)
OKLab	oklab(34.91% -0.0334 -0.063)
OKLCH	oklch(34.91% 0.071 242)
XYZ	xyz(3.8673, 4.3277, 10.7546)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103E5C #5C2E10

analogous

#105C54 #103E5C #10185C

triadic

#103E5C #5C103E #3E5C10

tetradic

#103E5C #54105C #5C2E10 #185C10

square

#103E5C #54105C #5C2E10 #185C10

split-complementary

#103E5C #5C1018 #5C5410

monochromatic

#05121A #071B28 #103E5C #196190 #2284C4

Accessibility & contrast

On white

11.26

#103E5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#103E5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103E5C

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103E5C	#FFFFFF	#000000	##FFFFFF
##103E5C	1.00	11.26	1.87	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303F5D

Deuteranopia (green-blind)

#26385B

Tritanopia (blue-blind)

#004549

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #103e5c;
/* rgb */ color: rgb(16, 62, 92);
/* oklch */ color: oklch(34.9% 0.071 242.0);

Tailwind

colors: {
  custom: {
    50: '#5b738a',
    500: '#103e5c',
    950: '#000000',
  },
}

SCSS

$custom: #103e5c;
$custom-light: #5b738a;
$custom-dark: #000000;

JSON

{
  "hex": "#103e5c",
  "rgb": {
    "r": 16,
    "g": 62,
    "b": 92
  },
  "hsl": {
    "h": 203.684,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.34914,
    "c": 0.07131,
    "h": 242
  },
  "luminance": 0.04328
}

Semantic roles & 50–950 ramp

primary

#103E5C

secondary

#955A33

accent

#813BED

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04080B

muted

#797B7C

Preview Lab

Preview with #103E5C

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

Preview Lab → · Contrast checker → · Palette generator →