#587EC9#587EC9

#587EC9 is a mid, vivid blue. Relative luminance 0.212; OKLCH L 59.9% C 0.123 H 262.9°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#587EC9
RGB	rgb(88, 126, 201)
HSL	hsl(220, 51%, 57%)
HSV	hsv(220, 56%, 79%)
CMYK	cmyk(56.2%, 37.3%, 0%, 21.2%)
CIE-LAB	lab(53.18, 8.92, -43.02)
CIE-LCH	lch(53.18, 43.93, 281.71°)
OKLab	oklab(59.92% -0.0152 -0.1218)
OKLCH	oklch(59.92% 0.123 262.9)
XYZ	xyz(22.0244, 21.2117, 58.1807)
Luminance	0.2121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587EC9 #C9A358

analogous

#58B7C9 #587EC9 #6B58C9

triadic

#587EC9 #C9587E #7EC958

tetradic

#587EC9 #C958B7 #C9A358 #58C96B

square

#587EC9 #C958B7 #C9A358 #58C96B

split-complementary

#587EC9 #C96B58 #B7C958

monochromatic

#29457E #385FAC #587EC9 #86A2D8 #B4C5E7

Accessibility & contrast

On white

4.01

#587EC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#587EC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587EC9

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587EC9	#FFFFFF	#000000	##000000
##587EC9	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F85CC

Deuteranopia (green-blind)

#517AC7

Tritanopia (blue-blind)

#078F9A

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #587ec9;
/* rgb */ color: rgb(88, 126, 201);
/* oklch */ color: oklch(59.9% 0.123 262.9);

Tailwind

colors: {
  custom: {
    50: '#8fa3da',
    500: '#587ec9',
    950: '#000000',
  },
}

SCSS

$custom: #587ec9;
$custom-light: #8fa3da;
$custom-dark: #000000;

JSON

{
  "hex": "#587ec9",
  "rgb": {
    "r": 88,
    "g": 126,
    "b": 201
  },
  "hsl": {
    "h": 219.823,
    "s": 51.131,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59922,
    "c": 0.12276,
    "h": 262.9
  },
  "luminance": 0.21213
}

Semantic roles & 50–950 ramp

primary

#587EC9

secondary

#D6C6A7

accent

#AB4DDB

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #587EC9

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

Preview Lab → · Contrast checker → · Palette generator →