#587EB9#587EB9

#587EB9 is a mid, moderate blue. Relative luminance 0.205; OKLCH L 59.1% C 0.101 H 258.9°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#587EB9
RGB	rgb(88, 126, 185)
HSL	hsl(216, 41%, 54%)
HSV	hsv(216, 52%, 73%)
CMYK	cmyk(52.4%, 31.9%, 0%, 27.5%)
CIE-LAB	lab(52.40, 3.77, -35.11)
CIE-LCH	lch(52.40, 35.31, 276.13°)
OKLab	oklab(59.05% -0.0193 -0.0988)
OKLCH	oklch(59.05% 0.101 258.9)
XYZ	xyz(20.2393, 20.4977, 48.7795)
Luminance	0.2050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587EB9 #B99358

analogous

#58AEB9 #587EB9 #6258B9

triadic

#587EB9 #B9587E #7EB958

tetradic

#587EB9 #B958AE #B99358 #58B962

square

#587EB9 #B958AE #B99358 #58B962

split-complementary

#587EB9 #B96258 #AEB958

monochromatic

#2C456A #3F6195 #587EB9 #839FCB #AEC1DD

Accessibility & contrast

On white

4.12

#587EB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#587EB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587EB9

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587EB9	#FFFFFF	#000000	##000000
##587EB9	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6782BC

Deuteranopia (green-blind)

#5B79B8

Tritanopia (blue-blind)

#268B93

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #587eb9;
/* rgb */ color: rgb(88, 126, 185);
/* oklch */ color: oklch(59.1% 0.101 258.9);

Tailwind

colors: {
  custom: {
    50: '#8da3ce',
    500: '#587eb9',
    950: '#000000',
  },
}

SCSS

$custom: #587eb9;
$custom-light: #8da3ce;
$custom-dark: #000000;

JSON

{
  "hex": "#587eb9",
  "rgb": {
    "r": 88,
    "g": 126,
    "b": 185
  },
  "hsl": {
    "h": 216.495,
    "s": 40.928,
    "l": 53.529
  },
  "oklch": {
    "l": 0.59054,
    "c": 0.10066,
    "h": 258.9
  },
  "luminance": 0.20499
}

Semantic roles & 50–950 ramp

primary

#587EB9

secondary

#CBBBA2

accent

#A157D1

background

#F9FAFC

surface

#F1F3F9

border

#CBCDD2

text

#0D0F13

muted

#7E7F82

Preview Lab

Preview with #587EB9

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

Preview Lab → · Contrast checker → · Palette generator →