#104D8D#104D8D

#104D8D is a dark, vivid cyan. Relative luminance 0.073; OKLCH L 42.0% C 0.121 H 253.9°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#104D8D
RGB	rgb(16, 77, 141)
HSL	hsl(211, 80%, 31%)
HSV	hsv(211, 89%, 55%)
CMYK	cmyk(88.7%, 45.4%, 0%, 44.7%)
CIE-LAB	lab(32.57, 6.75, -40.67)
CIE-LCH	lch(32.57, 41.23, 279.43°)
OKLab	oklab(42.03% -0.0336 -0.1167)
OKLCH	oklch(42.03% 0.121 253.9)
XYZ	xyz(7.6735, 7.3400, 26.2065)
Luminance	0.0734 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#104D8D #8D5010

analogous

#108B8D #104D8D #11108D

triadic

#104D8D #8D104D #4D8D10

tetradic

#104D8D #8D108B #8D5010 #108D11

square

#104D8D #8D108B #8D5010 #108D11

split-complementary

#104D8D #8D1110 #8B8D10

monochromatic

#04111F #0A2F56 #104D8D #166BC4 #3089E7

Accessibility & contrast

On white

8.51

#104D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#104D8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #104D8D

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##104D8D	#FFFFFF	#000000	##FFFFFF
##104D8D	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B528F

Deuteranopia (green-blind)

#10488C

Tritanopia (blue-blind)

#005C66

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #104d8d;
/* rgb */ color: rgb(16, 77, 141);
/* oklch */ color: oklch(42.0% 0.121 253.9);

Tailwind

colors: {
  custom: {
    50: '#687eaf',
    500: '#104d8d',
    950: '#000000',
  },
}

SCSS

$custom: #104d8d;
$custom-light: #687eaf;
$custom-dark: #000000;

JSON

{
  "hex": "#104d8d",
  "rgb": {
    "r": 16,
    "g": 77,
    "b": 141
  },
  "hsl": {
    "h": 210.72,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.42028,
    "c": 0.12147,
    "h": 253.9
  },
  "luminance": 0.07341
}

Semantic roles & 50–950 ramp

primary

#104D8D

secondary

#C27E37

accent

#9632F6

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #104D8D

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

Preview Lab → · Contrast checker → · Palette generator →