#587CB5#587CB5

#587CB5 is a mid, moderate blue. Relative luminance 0.198; OKLCH L 58.4% C 0.097 H 259.3°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#587CB5
RGB	rgb(88, 124, 181)
HSL	hsl(217, 39%, 53%)
HSV	hsv(217, 51%, 71%)
CMYK	cmyk(51.4%, 31.5%, 0%, 29%)
CIE-LAB	lab(51.64, 3.70, -34.00)
CIE-LCH	lch(51.64, 34.20, 276.21°)
OKLab	oklab(58.4% -0.0181 -0.0956)
OKLCH	oklch(58.4% 0.097 259.3)
XYZ	xyz(19.5698, 19.8248, 46.5024)
Luminance	0.1983 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587CB5 #B59158

analogous

#58AAB5 #587CB5 #6258B5

triadic

#587CB5 #B5587C #7CB558

tetradic

#587CB5 #B558AA #B59158 #58B562

square

#587CB5 #B558AA #B59158 #58B562

split-complementary

#587CB5 #B56258 #AAB558

monochromatic

#2D4366 #405F90 #587CB5 #829DC8 #ADBFDB

Accessibility & contrast

On white

4.23

#587CB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#587CB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587CB5

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587CB5	#FFFFFF	#000000	##000000
##587CB5	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6680B7

Deuteranopia (green-blind)

#5B77B4

Tritanopia (blue-blind)

#2B8890

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #587cb5;
/* rgb */ color: rgb(88, 124, 181);
/* oklch */ color: oklch(58.4% 0.097 259.3);

Tailwind

colors: {
  custom: {
    50: '#8da1cb',
    500: '#587cb5',
    950: '#000000',
  },
}

SCSS

$custom: #587cb5;
$custom-light: #8da1cb;
$custom-dark: #000000;

JSON

{
  "hex": "#587cb5",
  "rgb": {
    "r": 88,
    "g": 124,
    "b": 181
  },
  "hsl": {
    "h": 216.774,
    "s": 38.589,
    "l": 52.745
  },
  "oklch": {
    "l": 0.58402,
    "c": 0.09726,
    "h": 259.3
  },
  "luminance": 0.19826
}

Semantic roles & 50–950 ramp

primary

#587CB5

secondary

#C9B9A0

accent

#A159CF

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0D0E13

muted

#7D7E82

Preview Lab

Preview with #587CB5

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

Preview Lab → · Contrast checker → · Palette generator →