#587CC9#587CC9

#587CC9 is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.5% C 0.125 H 264.0°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#587CC9
RGB	rgb(88, 124, 201)
HSL	hsl(221, 51%, 57%)
HSV	hsv(221, 56%, 79%)
CMYK	cmyk(56.2%, 38.3%, 0%, 21.2%)
CIE-LAB	lab(52.63, 10.13, -43.90)
CIE-LCH	lch(52.63, 45.05, 282.99°)
OKLab	oklab(59.49% -0.013 -0.1244)
OKLCH	oklch(59.49% 0.125 264)
XYZ	xyz(21.7712, 20.7053, 58.0963)
Luminance	0.2071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587CC9 #C9A558

analogous

#58B5C9 #587CC9 #6D58C9

triadic

#587CC9 #C9587C #7CC958

tetradic

#587CC9 #C958B5 #C9A558 #58C96D

square

#587CC9 #C958B5 #C9A558 #58C96D

split-complementary

#587CC9 #C96D58 #B5C958

monochromatic

#29447E #385DAC #587CC9 #86A0D8 #B4C5E7

Accessibility & contrast

On white

4.08

#587CC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#587CC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587CC9

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587CC9	#FFFFFF	#000000	##000000
##587CC9	1.00	4.08	5.14	5.14
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C83CC

Deuteranopia (green-blind)

#4E79C7

Tritanopia (blue-blind)

#098D99

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #587cc9;
/* rgb */ color: rgb(88, 124, 201);
/* oklch */ color: oklch(59.5% 0.125 264.0);

Tailwind

colors: {
  custom: {
    50: '#8fa1da',
    500: '#587cc9',
    950: '#000000',
  },
}

SCSS

$custom: #587cc9;
$custom-light: #8fa1da;
$custom-dark: #000000;

JSON

{
  "hex": "#587cc9",
  "rgb": {
    "r": 88,
    "g": 124,
    "b": 201
  },
  "hsl": {
    "h": 220.885,
    "s": 51.131,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59492,
    "c": 0.12508,
    "h": 264
  },
  "luminance": 0.20707
}

Semantic roles & 50–950 ramp

primary

#587CC9

secondary

#D6C7A7

accent

#AE4DDB

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #587CC9

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

Preview Lab → · Contrast checker → · Palette generator →