#5181BD#5181BD

#5181BD is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 59.6% C 0.106 H 254.7°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#5181BD
RGB	rgb(81, 129, 189)
HSL	hsl(213, 45%, 53%)
HSV	hsv(213, 57%, 74%)
CMYK	cmyk(57.1%, 31.7%, 0%, 25.9%)
CIE-LAB	lab(53.08, 1.72, -36.35)
CIE-LCH	lch(53.08, 36.39, 272.71°)
OKLab	oklab(59.56% -0.028 -0.1025)
OKLCH	oklch(59.56% 0.106 254.7)
XYZ	xyz(20.4257, 21.1222, 51.1349)
Luminance	0.2112 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5181BD #BD8D51

analogous

#51B7BD #5181BD #5751BD

triadic

#5181BD #BD5181 #81BD51

tetradic

#5181BD #BD51B7 #BD8D51 #51BD57

square

#5181BD #BD51B7 #BD8D51 #51BD57

split-complementary

#5181BD #BD5751 #B7BD51

monochromatic

#29466B #396397 #5181BD #7DA1CE #AAC1DF

Accessibility & contrast

On white

4.02

#5181BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#5181BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5181BD

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5181BD	#FFFFFF	#000000	##000000
##5181BD	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6884C0

Deuteranopia (green-blind)

#5A7ABC

Tritanopia (blue-blind)

#008F96

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #5181bd;
/* rgb */ color: rgb(81, 129, 189);
/* oklch */ color: oklch(59.6% 0.106 254.7);

Tailwind

colors: {
  custom: {
    50: '#8aa5d1',
    500: '#5181bd',
    950: '#000000',
  },
}

SCSS

$custom: #5181bd;
$custom-light: #8aa5d1;
$custom-dark: #000000;

JSON

{
  "hex": "#5181bd",
  "rgb": {
    "r": 81,
    "g": 129,
    "b": 189
  },
  "hsl": {
    "h": 213.333,
    "s": 45,
    "l": 52.941
  },
  "oklch": {
    "l": 0.59557,
    "c": 0.10624,
    "h": 254.7
  },
  "luminance": 0.21124
}

Semantic roles & 50–950 ramp

primary

#5181BD

secondary

#CCB79E

accent

#9B53D5

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #5181BD

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

Preview Lab → · Contrast checker → · Palette generator →