#103B57#103B57

#103B57 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.8% C 0.068 H 241.7°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#103B57
RGB	rgb(16, 59, 87)
HSL	hsl(204, 69%, 20%)
HSV	hsv(204, 82%, 34%)
CMYK	cmyk(81.6%, 32.2%, 0%, 65.9%)
CIE-LAB	lab(23.42, -3.63, -21.01)
CIE-LCH	lch(23.42, 21.32, 260.20°)
OKLab	oklab(33.79% -0.032 -0.0595)
OKLCH	oklch(33.79% 0.068 241.7)
XYZ	xyz(3.4973, 3.9258, 9.5884)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103B57 #572C10

analogous

#10574F #103B57 #101757

triadic

#103B57 #57103B #3B5710

tetradic

#103B57 #4F1057 #572C10 #175710

square

#103B57 #4F1057 #572C10 #175710

split-complementary

#103B57 #571017 #574F10

monochromatic

#05121A #061823 #103B57 #1A5E8B #2381BE

Accessibility & contrast

On white

11.76

#103B57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#103B57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103B57

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103B57	#FFFFFF	#000000	##FFFFFF
##103B57	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3B58

Deuteranopia (green-blind)

#243556

Tritanopia (blue-blind)

#004245

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #103b57;
/* rgb */ color: rgb(16, 59, 87);
/* oklch */ color: oklch(33.8% 0.068 241.7);

Tailwind

colors: {
  custom: {
    50: '#5a7086',
    500: '#103b57',
    950: '#000000',
  },
}

SCSS

$custom: #103b57;
$custom-light: #5a7086;
$custom-dark: #000000;

JSON

{
  "hex": "#103b57",
  "rgb": {
    "r": 16,
    "g": 59,
    "b": 87
  },
  "hsl": {
    "h": 203.662,
    "s": 68.932,
    "l": 20.196
  },
  "oklch": {
    "l": 0.33794,
    "c": 0.06752,
    "h": 241.7
  },
  "luminance": 0.03926
}

Semantic roles & 50–950 ramp

primary

#103B57

secondary

#905732

accent

#813CEC

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #103B57

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

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