#587BB3#587BB3

#587BB3 is a mid, moderate blue. Relative luminance 0.195; OKLCH L 58.1% C 0.096 H 259.5°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#587BB3
RGB	rgb(88, 123, 179)
HSL	hsl(217, 37%, 52%)
HSV	hsv(217, 51%, 70%)
CMYK	cmyk(50.8%, 31.3%, 0%, 29.8%)
CIE-LAB	lab(51.26, 3.67, -33.44)
CIE-LCH	lch(51.26, 33.64, 276.27°)
OKLab	oklab(58.08% -0.0174 -0.094)
OKLCH	oklch(58.08% 0.096 259.5)
XYZ	xyz(19.2414, 19.4939, 45.3879)
Luminance	0.1950 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587BB3 #B39058

analogous

#58A9B3 #587BB3 #6258B3

triadic

#587BB3 #B3587B #7BB358

tetradic

#587BB3 #B358A9 #B39058 #58B362

square

#587BB3 #B358A9 #B39058 #58B362

split-complementary

#587BB3 #B36258 #A9B358

monochromatic

#2D4263 #405E8D #587BB3 #829CC6 #ACBDD9

Accessibility & contrast

On white

4.29

#587BB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#587BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587BB3

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587BB3	#FFFFFF	#000000	##000000
##587BB3	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657FB5

Deuteranopia (green-blind)

#5B76B2

Tritanopia (blue-blind)

#2D878F

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #587bb3;
/* rgb */ color: rgb(88, 123, 179);
/* oklch */ color: oklch(58.1% 0.096 259.5);

Tailwind

colors: {
  custom: {
    50: '#8ca0ca',
    500: '#587bb3',
    950: '#000000',
  },
}

SCSS

$custom: #587bb3;
$custom-light: #8ca0ca;
$custom-dark: #000000;

JSON

{
  "hex": "#587bb3",
  "rgb": {
    "r": 88,
    "g": 123,
    "b": 179
  },
  "hsl": {
    "h": 216.923,
    "s": 37.449,
    "l": 52.353
  },
  "oklch": {
    "l": 0.58076,
    "c": 0.09555,
    "h": 259.5
  },
  "luminance": 0.19495
}

Semantic roles & 50–950 ramp

primary

#587BB3

secondary

#C7B8A0

accent

#A15ACD

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #587BB3

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

Preview Lab → · Contrast checker → · Palette generator →