#104B81#104B81

#104B81 is a dark, moderate cyan. Relative luminance 0.067; OKLCH L 40.7% C 0.107 H 251.1°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#104B81
RGB	rgb(16, 75, 129)
HSL	hsl(209, 78%, 28%)
HSV	hsv(209, 88%, 51%)
CMYK	cmyk(87.6%, 41.9%, 0%, 49.4%)
CIE-LAB	lab(31.18, 3.11, -35.50)
CIE-LCH	lch(31.18, 35.64, 275.00°)
OKLab	oklab(40.7% -0.0348 -0.1016)
OKLCH	oklch(40.7% 0.107 251.1)
XYZ	xyz(6.6907, 6.7264, 21.7103)
Luminance	0.0673 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#104B81 #814610

analogous

#10817E #104B81 #101281

triadic

#104B81 #81104B #4B8110

tetradic

#104B81 #7E1081 #814610 #128110

square

#104B81 #7E1081 #814610 #128110

split-complementary

#104B81 #811012 #817E10

monochromatic

#03101B #092B4B #104B81 #176BB7 #278AE4

Accessibility & contrast

On white

8.95

#104B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#104B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #104B81

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##104B81	#FFFFFF	#000000	##FFFFFF
##104B81	1.00	8.95	2.35	8.95
#FFFFFF	8.95	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304F83

Deuteranopia (green-blind)

#1D4580

Tritanopia (blue-blind)

#00585F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #104b81;
/* rgb */ color: rgb(16, 75, 129);
/* oklch */ color: oklch(40.7% 0.107 251.1);

Tailwind

colors: {
  custom: {
    50: '#657ca6',
    500: '#104b81',
    950: '#000000',
  },
}

SCSS

$custom: #104b81;
$custom-light: #657ca6;
$custom-dark: #000000;

JSON

{
  "hex": "#104b81",
  "rgb": {
    "r": 16,
    "g": 75,
    "b": 129
  },
  "hsl": {
    "h": 208.673,
    "s": 77.931,
    "l": 28.431
  },
  "oklch": {
    "l": 0.40695,
    "c": 0.10738,
    "h": 251.1
  },
  "luminance": 0.06727
}

Semantic roles & 50–950 ramp

primary

#104B81

secondary

#B77436

accent

#9033F4

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#06090F

muted

#7A7B7F

Preview Lab

Preview with #104B81

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

Preview Lab → · Contrast checker → · Palette generator →