#587CB1#587CB1

#587CB1 is a mid, moderate blue. Relative luminance 0.197; OKLCH L 58.2% C 0.092 H 257.9°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#587CB1
RGB	rgb(88, 124, 177)
HSL	hsl(216, 36%, 52%)
HSV	hsv(216, 50%, 69%)
CMYK	cmyk(50.3%, 29.9%, 0%, 30.6%)
CIE-LAB	lab(51.45, 2.45, -31.98)
CIE-LCH	lch(51.45, 32.07, 274.38°)
OKLab	oklab(58.2% -0.0192 -0.0897)
OKLCH	oklch(58.2% 0.092 257.9)
XYZ	xyz(19.1653, 19.6630, 44.3719)
Luminance	0.1966 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587CB1 #B18D58

analogous

#58A9B1 #587CB1 #6058B1

triadic

#587CB1 #B1587C #7CB158

tetradic

#587CB1 #B158A9 #B18D58 #58B160

square

#587CB1 #B158A9 #B18D58 #58B160

split-complementary

#587CB1 #B16058 #A9B158

monochromatic

#2D4261 #415F8B #587CB1 #829DC4 #ABBDD8

Accessibility & contrast

On white

4.26

#587CB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#587CB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587CB1

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587CB1	#FFFFFF	#000000	##000000
##587CB1	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677FB3

Deuteranopia (green-blind)

#5D77B0

Tritanopia (blue-blind)

#2F888F

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #587cb1;
/* rgb */ color: rgb(88, 124, 177);
/* oklch */ color: oklch(58.2% 0.092 257.9);

Tailwind

colors: {
  custom: {
    50: '#8ca1c8',
    500: '#587cb1',
    950: '#000000',
  },
}

SCSS

$custom: #587cb1;
$custom-light: #8ca1c8;
$custom-dark: #000000;

JSON

{
  "hex": "#587cb1",
  "rgb": {
    "r": 88,
    "g": 124,
    "b": 177
  },
  "hsl": {
    "h": 215.73,
    "s": 36.327,
    "l": 51.961
  },
  "oklch": {
    "l": 0.58197,
    "c": 0.09176,
    "h": 257.9
  },
  "luminance": 0.19664
}

Semantic roles & 50–950 ramp

primary

#587CB1

secondary

#C6B69F

accent

#9F5BCC

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0F13

muted

#7D7E82

Preview Lab

Preview with #587CB1

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

Preview Lab → · Contrast checker → · Palette generator →