#587BB9#587BB9

#587BB9 is a mid, moderate blue. Relative luminance 0.197; OKLCH L 58.4% C 0.104 H 261.3°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#587BB9
RGB	rgb(88, 123, 185)
HSL	hsl(218, 41%, 54%)
HSV	hsv(218, 52%, 73%)
CMYK	cmyk(52.4%, 33.5%, 0%, 27.5%)
CIE-LAB	lab(51.54, 5.57, -36.45)
CIE-LCH	lch(51.54, 36.87, 278.69°)
OKLab	oklab(58.39% -0.0158 -0.1027)
OKLCH	oklch(58.39% 0.104 261.3)
XYZ	xyz(19.8615, 19.7420, 48.6535)
Luminance	0.1974 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587BB9 #B99658

analogous

#58ABB9 #587BB9 #6558B9

triadic

#587BB9 #B9587B #7BB958

tetradic

#587BB9 #B958AB #B99658 #58B965

square

#587BB9 #B958AB #B99658 #58B965

split-complementary

#587BB9 #B96558 #ABB958

monochromatic

#2C436A #3F5E95 #587BB9 #839DCB #AEBFDD

Accessibility & contrast

On white

4.24

#587BB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#587BB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587BB9

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587BB9	#FFFFFF	#000000	##000000
##587BB9	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6380BC

Deuteranopia (green-blind)

#5777B8

Tritanopia (blue-blind)

#278991

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #587bb9;
/* rgb */ color: rgb(88, 123, 185);
/* oklch */ color: oklch(58.4% 0.104 261.3);

Tailwind

colors: {
  custom: {
    50: '#8da0ce',
    500: '#587bb9',
    950: '#000000',
  },
}

SCSS

$custom: #587bb9;
$custom-light: #8da0ce;
$custom-dark: #000000;

JSON

{
  "hex": "#587bb9",
  "rgb": {
    "r": 88,
    "g": 123,
    "b": 185
  },
  "hsl": {
    "h": 218.351,
    "s": 40.928,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58391,
    "c": 0.10389,
    "h": 261.3
  },
  "luminance": 0.19743
}

Semantic roles & 50–950 ramp

primary

#587BB9

secondary

#CBBCA2

accent

#A557D1

background

#F9F9FC

surface

#F1F2F9

border

#CBCCD2

text

#0D0E13

muted

#7E7E82

Preview Lab

Preview with #587BB9

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

Preview Lab → · Contrast checker → · Palette generator →