#587CB3#587CB3

#587CB3 is a mid, moderate blue. Relative luminance 0.197; OKLCH L 58.3% C 0.095 H 258.6°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#587CB3
RGB	rgb(88, 124, 179)
HSL	hsl(216, 37%, 52%)
HSV	hsv(216, 51%, 70%)
CMYK	cmyk(50.8%, 30.7%, 0%, 29.8%)
CIE-LAB	lab(51.55, 3.07, -32.99)
CIE-LCH	lch(51.55, 33.13, 275.32°)
OKLab	oklab(58.3% -0.0186 -0.0926)
OKLCH	oklch(58.3% 0.095 258.6)
XYZ	xyz(19.3661, 19.7433, 45.4294)
Luminance	0.1974 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587CB3 #B38F58

analogous

#58AAB3 #587CB3 #6258B3

triadic

#587CB3 #B3587C #7CB358

tetradic

#587CB3 #B358AA #B38F58 #58B362

square

#587CB3 #B358AA #B38F58 #58B362

split-complementary

#587CB3 #B36258 #AAB358

monochromatic

#2D4363 #405F8D #587CB3 #829DC6 #ACBED9

Accessibility & contrast

On white

4.24

#587CB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#587CB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587CB3

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587CB3	#FFFFFF	#000000	##000000
##587CB3	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6780B5

Deuteranopia (green-blind)

#5C77B2

Tritanopia (blue-blind)

#2D8890

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #587cb3;
/* rgb */ color: rgb(88, 124, 179);
/* oklch */ color: oklch(58.3% 0.095 258.6);

Tailwind

colors: {
  custom: {
    50: '#8ca1ca',
    500: '#587cb3',
    950: '#000000',
  },
}

SCSS

$custom: #587cb3;
$custom-light: #8ca1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#587cb3",
  "rgb": {
    "r": 88,
    "g": 124,
    "b": 179
  },
  "hsl": {
    "h": 216.264,
    "s": 37.449,
    "l": 52.353
  },
  "oklch": {
    "l": 0.58299,
    "c": 0.0945,
    "h": 258.6
  },
  "luminance": 0.19745
}

Semantic roles & 50–950 ramp

primary

#587CB3

secondary

#C7B8A0

accent

#A05ACD

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0F13

muted

#7D7E82

Preview Lab

Preview with #587CB3

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

Preview Lab → · Contrast checker → · Palette generator →