#103F4D#103F4D

#103F4D is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.3% C 0.055 H 221.8°. Best body text is #FFFFFF at 11.41:1 contrast (WCAG AA passes).

Color values

HEX	#103F4D
RGB	rgb(16, 63, 77)
HSL	hsl(194, 66%, 18%)
HSV	hsv(194, 79%, 30%)
CMYK	cmyk(79.2%, 18.2%, 0%, 69.8%)
CIE-LAB	lab(24.32, -10.20, -13.02)
CIE-LCH	lch(24.32, 16.54, 231.93°)
OKLab	oklab(34.35% -0.0406 -0.0364)
OKLCH	oklch(34.35% 0.055 221.8)
XYZ	xyz(3.3302, 4.2006, 7.6550)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103F4D #4D1E10

analogous

#104D3C #103F4D #10214D

triadic

#103F4D #4D103F #3F4D10

tetradic

#103F4D #3C104D #4D1E10 #214D10

square

#103F4D #3C104D #4D1E10 #214D10

split-complementary

#103F4D #4D1021 #4D3C10

monochromatic

#051519 #05161A #103F4D #1B6880 #2592B2

Accessibility & contrast

On white

11.41

#103F4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#103F4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103F4D

11.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103F4D	#FFFFFF	#000000	##FFFFFF
##103F4D	1.00	11.41	1.84	11.41
#FFFFFF	11.41	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373D4E

Deuteranopia (green-blind)

#2E374D

Tritanopia (blue-blind)

#004343

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #103f4d;
/* rgb */ color: rgb(16, 63, 77);
/* oklch */ color: oklch(34.3% 0.055 221.8);

Tailwind

colors: {
  custom: {
    50: '#58747e',
    500: '#103f4d',
    950: '#000000',
  },
}

SCSS

$custom: #103f4d;
$custom-light: #58747e;
$custom-dark: #000000;

JSON

{
  "hex": "#103f4d",
  "rgb": {
    "r": 16,
    "g": 63,
    "b": 77
  },
  "hsl": {
    "h": 193.77,
    "s": 65.591,
    "l": 18.235
  },
  "oklch": {
    "l": 0.34346,
    "c": 0.05457,
    "h": 221.8
  },
  "luminance": 0.04201
}

Semantic roles & 50–950 ramp

primary

#103F4D

secondary

#874532

accent

#663FE9

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #103F4D

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

Preview Lab → · Contrast checker → · Palette generator →