#103E57#103E57

#103E57 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.6% C 0.065 H 237.2°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#103E57
RGB	rgb(16, 62, 87)
HSL	hsl(201, 69%, 20%)
HSV	hsv(201, 82%, 34%)
CMYK	cmyk(81.6%, 28.7%, 0%, 65.9%)
CIE-LAB	lab(24.46, -5.61, -19.39)
CIE-LCH	lch(24.46, 20.18, 253.85°)
OKLab	oklab(34.62% -0.0353 -0.0547)
OKLCH	oklch(34.62% 0.065 237.2)
XYZ	xyz(3.6559, 4.2431, 9.6413)
Luminance	0.0424 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103E57 #572910

analogous

#10574C #103E57 #101A57

triadic

#103E57 #57103E #3E5710

tetradic

#103E57 #4C1057 #572910 #1A5710

square

#103E57 #4C1057 #572910 #1A5710

split-complementary

#103E57 #57101A #574C10

monochromatic

#05121A #061923 #103E57 #1A638B #2388BE

Accessibility & contrast

On white

11.36

#103E57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#103E57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103E57

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103E57	#FFFFFF	#000000	##FFFFFF
##103E57	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323E58

Deuteranopia (green-blind)

#283757

Tritanopia (blue-blind)

#004447

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #103e57;
/* rgb */ color: rgb(16, 62, 87);
/* oklch */ color: oklch(34.6% 0.065 237.2);

Tailwind

colors: {
  custom: {
    50: '#5a7386',
    500: '#103e57',
    950: '#000000',
  },
}

SCSS

$custom: #103e57;
$custom-light: #5a7386;
$custom-dark: #000000;

JSON

{
  "hex": "#103e57",
  "rgb": {
    "r": 16,
    "g": 62,
    "b": 87
  },
  "hsl": {
    "h": 201.127,
    "s": 68.932,
    "l": 20.196
  },
  "oklch": {
    "l": 0.34615,
    "c": 0.06511,
    "h": 237.2
  },
  "luminance": 0.04244
}

Semantic roles & 50–950 ramp

primary

#103E57

secondary

#905332

accent

#7A3CEC

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #103E57

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

Preview Lab → · Contrast checker → · Palette generator →