#587FBB#587FBB

#587FBB is a mid, moderate blue. Relative luminance 0.208; OKLCH L 59.4% C 0.102 H 258.8°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#587FBB
RGB	rgb(88, 127, 187)
HSL	hsl(216, 42%, 54%)
HSV	hsv(216, 53%, 73%)
CMYK	cmyk(52.9%, 32.1%, 0%, 26.7%)
CIE-LAB	lab(52.77, 3.81, -35.67)
CIE-LCH	lch(52.77, 35.87, 276.09°)
OKLab	oklab(59.38% -0.02 -0.1004)
OKLCH	oklch(59.38% 0.102 258.8)
XYZ	xyz(20.5805, 20.8398, 49.9420)
Luminance	0.2084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587FBB #BB9458

analogous

#58B1BB #587FBB #6358BB

triadic

#587FBB #BB587F #7FBB58

tetradic

#587FBB #BB58B1 #BB9458 #58BB63

square

#587FBB #BB58B1 #BB9458 #58BB63

split-complementary

#587FBB #BB6358 #B1BB58

monochromatic

#2C456C #3E6198 #587FBB #83A0CD #AFC2DE

Accessibility & contrast

On white

4.06

#587FBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#587FBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587FBB

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587FBB	#FFFFFF	#000000	##000000
##587FBB	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6783BE

Deuteranopia (green-blind)

#5B7ABA

Tritanopia (blue-blind)

#248C94

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #587fbb;
/* rgb */ color: rgb(88, 127, 187);
/* oklch */ color: oklch(59.4% 0.102 258.8);

Tailwind

colors: {
  custom: {
    50: '#8da3cf',
    500: '#587fbb',
    950: '#000000',
  },
}

SCSS

$custom: #587fbb;
$custom-light: #8da3cf;
$custom-dark: #000000;

JSON

{
  "hex": "#587fbb",
  "rgb": {
    "r": 88,
    "g": 127,
    "b": 187
  },
  "hsl": {
    "h": 216.364,
    "s": 42.128,
    "l": 53.922
  },
  "oklch": {
    "l": 0.5938,
    "c": 0.10236,
    "h": 258.8
  },
  "luminance": 0.20841
}

Semantic roles & 50–950 ramp

primary

#587FBB

secondary

#CDBCA2

accent

#A156D2

background

#F9FAFC

surface

#F1F3F9

border

#CBCDD2

text

#0D0F14

muted

#7E7F82

Preview Lab

Preview with #587FBB

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

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