#5371CB#5371CB

#5371CB is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.0% C 0.143 H 267.8°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#5371CB
RGB	rgb(83, 113, 203)
HSL	hsl(225, 54%, 56%)
HSV	hsv(225, 59%, 80%)
CMYK	cmyk(59.1%, 44.3%, 0%, 20.4%)
CIE-LAB	lab(49.45, 16.52, -50.11)
CIE-LCH	lch(49.45, 52.76, 288.25°)
OKLab	oklab(57.01% -0.0054 -0.1428)
OKLCH	oklch(57.01% 0.143 267.8)
XYZ	xyz(20.2483, 17.9594, 58.8878)
Luminance	0.1796 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5371CB #CBAD53

analogous

#53ADCB #5371CB #7153CB

triadic

#5371CB #CB5371 #71CB53

tetradic

#5371CB #CB53AD #CBAD53 #53CB71

square

#5371CB #CB53AD #CBAD53 #53CB71

split-complementary

#5371CB #CB7153 #ADCB53

monochromatic

#263C7E #3452AD #5371CB #8298D9 #B1BFE7

Accessibility & contrast

On white

4.57

#5371CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#5371CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5371CB

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5371CB	#FFFFFF	#000000	##000000
##5371CB	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#487BCE

Deuteranopia (green-blind)

#3771C9

Tritanopia (blue-blind)

#008594

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #5371cb;
/* rgb */ color: rgb(83, 113, 203);
/* oklch */ color: oklch(57.0% 0.143 267.8);

Tailwind

colors: {
  custom: {
    50: '#8d99db',
    500: '#5371cb',
    950: '#000000',
  },
}

SCSS

$custom: #5371cb;
$custom-light: #8d99db;
$custom-dark: #000000;

JSON

{
  "hex": "#5371cb",
  "rgb": {
    "r": 83,
    "g": 113,
    "b": 203
  },
  "hsl": {
    "h": 225,
    "s": 53.571,
    "l": 56.078
  },
  "oklch": {
    "l": 0.57007,
    "c": 0.14292,
    "h": 267.8
  },
  "luminance": 0.17961
}

Semantic roles & 50–950 ramp

primary

#5371CB

secondary

#D6C9A4

accent

#B84BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #5371CB

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

Preview Lab → · Contrast checker → · Palette generator →