#5181AF#5181AF

#5181AF is a mid, moderate cyan. Relative luminance 0.205; OKLCH L 58.8% C 0.088 H 248.5°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#5181AF
RGB	rgb(81, 129, 175)
HSL	hsl(209, 37%, 50%)
HSV	hsv(209, 54%, 69%)
CMYK	cmyk(53.7%, 26.3%, 0%, 31.4%)
CIE-LAB	lab(52.45, -2.78, -29.31)
CIE-LCH	lch(52.45, 29.44, 264.58°)
OKLab	oklab(58.85% -0.0323 -0.0821)
OKLCH	oklch(58.85% 0.088 248.5)
XYZ	xyz(18.9787, 20.5435, 43.5143)
Luminance	0.2054 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5181AF #AF7F51

analogous

#51AFAE #5181AF #5152AF

triadic

#5181AF #AF5181 #81AF51

tetradic

#5181AF #AE51AF #AF7F51 #52AF51

square

#5181AF #AE51AF #AF7F51 #52AF51

split-complementary

#5181AF #AF5152 #AFAE51

monochromatic

#2A435C #3D6285 #5181AF #7B9FC2 #A5BED6

Accessibility & contrast

On white

4.11

#5181AF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#5181AF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5181AF

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5181AF	#FFFFFF	#000000	##000000
##5181AF	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E82B1

Deuteranopia (green-blind)

#6279AE

Tritanopia (blue-blind)

#198C91

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #5181af;
/* rgb */ color: rgb(81, 129, 175);
/* oklch */ color: oklch(58.8% 0.088 248.5);

Tailwind

colors: {
  custom: {
    50: '#88a5c7',
    500: '#5181af',
    950: '#000000',
  },
}

SCSS

$custom: #5181af;
$custom-light: #88a5c7;
$custom-dark: #000000;

JSON

{
  "hex": "#5181af",
  "rgb": {
    "r": 81,
    "g": 129,
    "b": 175
  },
  "hsl": {
    "h": 209.362,
    "s": 37.008,
    "l": 50.196
  },
  "oklch": {
    "l": 0.58847,
    "c": 0.08821,
    "h": 248.5
  },
  "luminance": 0.20545
}

Semantic roles & 50–950 ramp

primary

#5181AF

secondary

#C3AD99

accent

#935BCD

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #5181AF

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

Preview Lab → · Contrast checker → · Palette generator →