#103C51#103C51

#103C51 is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.7% C 0.060 H 233.5°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#103C51
RGB	rgb(16, 60, 81)
HSL	hsl(199, 67%, 19%)
HSV	hsv(199, 80%, 32%)
CMYK	cmyk(80.2%, 25.9%, 0%, 68.2%)
CIE-LAB	lab(23.46, -6.73, -17.00)
CIE-LCH	lch(23.46, 18.28, 248.42°)
OKLab	oklab(33.72% -0.0354 -0.0478)
OKLCH	oklch(33.72% 0.06 233.5)
XYZ	xyz(3.3142, 3.9356, 8.3680)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103C51 #512510

analogous

#105146 #103C51 #101C51

triadic

#103C51 #51103C #3C5110

tetradic

#103C51 #461051 #512510 #1C5110

square

#103C51 #461051 #512510 #1C5110

split-complementary

#103C51 #51101C #514610

monochromatic

#05131A #06161E #103C51 #1A6284 #2488B7

Accessibility & contrast

On white

11.75

#103C51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#103C51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103C51

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103C51	#FFFFFF	#000000	##FFFFFF
##103C51	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323B52

Deuteranopia (green-blind)

#293551

Tritanopia (blue-blind)

#004243

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #103c51;
/* rgb */ color: rgb(16, 60, 81);
/* oklch */ color: oklch(33.7% 0.060 233.5);

Tailwind

colors: {
  custom: {
    50: '#597182',
    500: '#103c51',
    950: '#000000',
  },
}

SCSS

$custom: #103c51;
$custom-light: #597182;
$custom-dark: #000000;

JSON

{
  "hex": "#103c51",
  "rgb": {
    "r": 16,
    "g": 60,
    "b": 81
  },
  "hsl": {
    "h": 199.385,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.33716,
    "c": 0.05954,
    "h": 233.5
  },
  "luminance": 0.03936
}

Semantic roles & 50–950 ramp

primary

#103C51

secondary

#8B4F32

accent

#753EEA

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #103C51

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

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