#103C57#103C57

#103C57 is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.1% C 0.067 H 240.2°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#103C57
RGB	rgb(16, 60, 87)
HSL	hsl(203, 69%, 20%)
HSV	hsv(203, 82%, 34%)
CMYK	cmyk(81.6%, 31%, 0%, 65.9%)
CIE-LAB	lab(23.77, -4.30, -20.47)
CIE-LCH	lch(23.77, 20.91, 258.14°)
OKLab	oklab(34.07% -0.0331 -0.0579)
OKLCH	oklch(34.07% 0.067 240.2)
XYZ	xyz(3.5492, 4.0296, 9.6057)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103C57 #572B10

analogous

#10574E #103C57 #101857

triadic

#103C57 #57103C #3C5710

tetradic

#103C57 #4E1057 #572B10 #185710

square

#103C57 #4E1057 #572B10 #185710

split-complementary

#103C57 #571018 #574E10

monochromatic

#05121A #061823 #103C57 #1A608B #2383BE

Accessibility & contrast

On white

11.63

#103C57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#103C57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103C57

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103C57	#FFFFFF	#000000	##FFFFFF
##103C57	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3C58

Deuteranopia (green-blind)

#263657

Tritanopia (blue-blind)

#004345

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #103c57;
/* rgb */ color: rgb(16, 60, 87);
/* oklch */ color: oklch(34.1% 0.067 240.2);

Tailwind

colors: {
  custom: {
    50: '#5a7186',
    500: '#103c57',
    950: '#000000',
  },
}

SCSS

$custom: #103c57;
$custom-light: #5a7186;
$custom-dark: #000000;

JSON

{
  "hex": "#103c57",
  "rgb": {
    "r": 16,
    "g": 60,
    "b": 87
  },
  "hsl": {
    "h": 202.817,
    "s": 68.932,
    "l": 20.196
  },
  "oklch": {
    "l": 0.34067,
    "c": 0.06667,
    "h": 240.2
  },
  "luminance": 0.0403
}

Semantic roles & 50–950 ramp

primary

#103C57

secondary

#905632

accent

#7F3CEC

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #103C57

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

Preview Lab → · Contrast checker → · Palette generator →