#587CB8#587CB8

#587CB8 is a mid, moderate blue. Relative luminance 0.200; OKLCH L 58.6% C 0.101 H 260.2°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#587CB8
RGB	rgb(88, 124, 184)
HSL	hsl(218, 40%, 53%)
HSV	hsv(218, 52%, 72%)
CMYK	cmyk(52.2%, 32.6%, 0%, 27.8%)
CIE-LAB	lab(51.78, 4.65, -35.50)
CIE-LCH	lch(51.78, 35.81, 277.46°)
OKLab	oklab(58.56% -0.0172 -0.0999)
OKLCH	oklch(58.56% 0.101 260.2)
XYZ	xyz(19.8810, 19.9493, 48.1411)
Luminance	0.1995 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587CB8 #B89458

analogous

#58ACB8 #587CB8 #6458B8

triadic

#587CB8 #B8587C #7CB858

tetradic

#587CB8 #B858AC #B89458 #58B864

square

#587CB8 #B858AC #B89458 #58B864

split-complementary

#587CB8 #B86458 #ACB858

monochromatic

#2D4369 #3F5F94 #587CB8 #839ECA #AEBFDD

Accessibility & contrast

On white

4.21

#587CB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#587CB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587CB8

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587CB8	#FFFFFF	#000000	##000000
##587CB8	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6580BB

Deuteranopia (green-blind)

#5977B7

Tritanopia (blue-blind)

#288992

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #587cb8;
/* rgb */ color: rgb(88, 124, 184);
/* oklch */ color: oklch(58.6% 0.101 260.2);

Tailwind

colors: {
  custom: {
    50: '#8da1cd',
    500: '#587cb8',
    950: '#000000',
  },
}

SCSS

$custom: #587cb8;
$custom-light: #8da1cd;
$custom-dark: #000000;

JSON

{
  "hex": "#587cb8",
  "rgb": {
    "r": 88,
    "g": 124,
    "b": 184
  },
  "hsl": {
    "h": 217.5,
    "s": 40.336,
    "l": 53.333
  },
  "oklch": {
    "l": 0.58558,
    "c": 0.10141,
    "h": 260.2
  },
  "luminance": 0.19951
}

Semantic roles & 50–950 ramp

primary

#587CB8

secondary

#CBBBA1

accent

#A358D0

background

#F9F9FC

surface

#F1F2F9

border

#CBCCD2

text

#0D0E13

muted

#7E7E82

Preview Lab

Preview with #587CB8

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

Preview Lab → · Contrast checker → · Palette generator →