#587DCB#587DCB

#587DCB is a mid, vivid blue. Relative luminance 0.211; OKLCH L 59.8% C 0.127 H 263.8°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#587DCB
RGB	rgb(88, 125, 203)
HSL	hsl(221, 53%, 57%)
HSV	hsv(221, 57%, 80%)
CMYK	cmyk(56.7%, 38.4%, 0%, 20.4%)
CIE-LAB	lab(53.01, 10.18, -44.43)
CIE-LCH	lch(53.01, 45.58, 282.90°)
OKLab	oklab(59.82% -0.0137 -0.1259)
OKLCH	oklch(59.82% 0.127 263.8)
XYZ	xyz(22.1339, 21.0520, 59.3854)
Luminance	0.2105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587DCB #CBA658

analogous

#58B6CB #587DCB #6D58CB

triadic

#587DCB #CB587D #7DCB58

tetradic

#587DCB #CB58B6 #CBA658 #58CB6D

square

#587DCB #CB58B6 #CBA658 #58CB6D

split-complementary

#587DCB #CB6D58 #B6CB58

monochromatic

#284581 #375DAF #587DCB #87A1DA #B5C6E8

Accessibility & contrast

On white

4.03

#587DCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#587DCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587DCB

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587DCB	#FFFFFF	#000000	##000000
##587DCB	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D84CE

Deuteranopia (green-blind)

#4E7AC9

Tritanopia (blue-blind)

#008E9A

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #587dcb;
/* rgb */ color: rgb(88, 125, 203);
/* oklch */ color: oklch(59.8% 0.127 263.8);

Tailwind

colors: {
  custom: {
    50: '#8fa2db',
    500: '#587dcb',
    950: '#000000',
  },
}

SCSS

$custom: #587dcb;
$custom-light: #8fa2db;
$custom-dark: #000000;

JSON

{
  "hex": "#587dcb",
  "rgb": {
    "r": 88,
    "g": 125,
    "b": 203
  },
  "hsl": {
    "h": 220.696,
    "s": 52.511,
    "l": 57.059
  },
  "oklch": {
    "l": 0.59821,
    "c": 0.12669,
    "h": 263.8
  },
  "luminance": 0.21054
}

Semantic roles & 50–950 ramp

primary

#587DCB

secondary

#D7C8A8

accent

#AE4CDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #587DCB

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

Preview Lab → · Contrast checker → · Palette generator →