#1D81A8#1D81A8

#1D81A8 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 56.7% C 0.105 H 230.1°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#1D81A8
RGB	rgb(29, 129, 168)
HSL	hsl(197, 71%, 39%)
HSV	hsv(197, 83%, 66%)
CMYK	cmyk(82.7%, 23.2%, 0%, 34.1%)
CIE-LAB	lab(50.44, -13.65, -28.52)
CIE-LCH	lch(50.44, 31.62, 244.41°)
OKLab	oklab(56.68% -0.067 -0.0803)
OKLCH	oklch(56.68% 0.105 230.1)
XYZ	xyz(15.4219, 18.7869, 39.8516)
Luminance	0.1879 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D81A8 #A8441D

analogous

#1DA889 #1D81A8 #1D3BA8

triadic

#1D81A8 #A81D81 #81A81D

tetradic

#1D81A8 #891DA8 #A8441D #3BA81D

square

#1D81A8 #891DA8 #A8441D #3BA81D

split-complementary

#1D81A8 #A81D3B #A8891D

monochromatic

#0B3140 #145974 #1D81A8 #28A8DA #5CBDE3

Accessibility & contrast

On white

4.41

#1D81A8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#1D81A8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D81A8

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D81A8	#FFFFFF	#000000	##000000
##1D81A8	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7FAA

Deuteranopia (green-blind)

#5B72A7

Tritanopia (blue-blind)

#008C8E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #1d81a8;
/* rgb */ color: rgb(29, 129, 168);
/* oklch */ color: oklch(56.7% 0.105 230.1);

Tailwind

colors: {
  custom: {
    50: '#72a5c2',
    500: '#1d81a8',
    950: '#000000',
  },
}

SCSS

$custom: #1d81a8;
$custom-light: #72a5c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d81a8",
  "rgb": {
    "r": 29,
    "g": 129,
    "b": 168
  },
  "hsl": {
    "h": 196.835,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.56678,
    "c": 0.10463,
    "h": 230.1
  },
  "luminance": 0.18789
}

Semantic roles & 50–950 ramp

primary

#1D81A8

secondary

#C7785A

accent

#6D3AED

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #1D81A8

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

Preview Lab → · Contrast checker → · Palette generator →