#5181BE#5181BE

#5181BE is a mid, moderate cyan. Relative luminance 0.212; OKLCH L 59.6% C 0.108 H 255.1°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#5181BE
RGB	rgb(81, 129, 190)
HSL	hsl(214, 46%, 53%)
HSV	hsv(214, 57%, 75%)
CMYK	cmyk(57.4%, 32.1%, 0%, 25.5%)
CIE-LAB	lab(53.13, 2.05, -36.85)
CIE-LCH	lch(53.13, 36.90, 273.18°)
OKLab	oklab(59.61% -0.0277 -0.1039)
OKLCH	oklch(59.61% 0.108 255.1)
XYZ	xyz(20.5346, 21.1658, 51.7085)
Luminance	0.2117 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5181BE #BE8E51

analogous

#51B7BE #5181BE #5751BE

triadic

#5181BE #BE5181 #81BE51

tetradic

#5181BE #BE51B7 #BE8E51 #51BE57

square

#5181BE #BE51B7 #BE8E51 #51BE57

split-complementary

#5181BE #BE5751 #B7BE51

monochromatic

#28466C #396399 #5181BE #7EA1CF #AAC2DF

Accessibility & contrast

On white

4.01

#5181BE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#5181BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5181BE

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5181BE	#FFFFFF	#000000	##000000
##5181BE	1.00	4.01	5.23	5.23
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6885C1

Deuteranopia (green-blind)

#5A7ABD

Tritanopia (blue-blind)

#008F97

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #5181be;
/* rgb */ color: rgb(81, 129, 190);
/* oklch */ color: oklch(59.6% 0.108 255.1);

Tailwind

colors: {
  custom: {
    50: '#8aa5d2',
    500: '#5181be',
    950: '#000000',
  },
}

SCSS

$custom: #5181be;
$custom-light: #8aa5d2;
$custom-dark: #000000;

JSON

{
  "hex": "#5181be",
  "rgb": {
    "r": 81,
    "g": 129,
    "b": 190
  },
  "hsl": {
    "h": 213.578,
    "s": 45.607,
    "l": 53.137
  },
  "oklch": {
    "l": 0.59609,
    "c": 0.10756,
    "h": 255.1
  },
  "luminance": 0.21168
}

Semantic roles & 50–950 ramp

primary

#5181BE

secondary

#CDB89E

accent

#9C53D5

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #5181BE

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

Preview Lab → · Contrast checker → · Palette generator →