#587BB1#587BB1

#587BB1 is a mid, moderate blue. Relative luminance 0.194; OKLCH L 58.0% C 0.093 H 258.8°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#587BB1
RGB	rgb(88, 123, 177)
HSL	hsl(216, 36%, 52%)
HSV	hsv(216, 50%, 69%)
CMYK	cmyk(50.3%, 30.5%, 0%, 30.6%)
CIE-LAB	lab(51.17, 3.05, -32.43)
CIE-LCH	lch(51.17, 32.57, 275.37°)
OKLab	oklab(57.97% -0.018 -0.091)
OKLCH	oklch(57.97% 0.093 258.8)
XYZ	xyz(19.0406, 19.4136, 44.3303)
Luminance	0.1941 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587BB1 #B18E58

analogous

#58A8B1 #587BB1 #6158B1

triadic

#587BB1 #B1587B #7BB158

tetradic

#587BB1 #B158A8 #B18E58 #58B161

square

#587BB1 #B158A8 #B18E58 #58B161

split-complementary

#587BB1 #B16158 #A8B158

monochromatic

#2D4261 #415E8B #587BB1 #829CC4 #ABBDD8

Accessibility & contrast

On white

4.30

#587BB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#587BB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587BB1

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587BB1	#FFFFFF	#000000	##000000
##587BB1	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#667FB3

Deuteranopia (green-blind)

#5C76B0

Tritanopia (blue-blind)

#2F878E

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #587bb1;
/* rgb */ color: rgb(88, 123, 177);
/* oklch */ color: oklch(58.0% 0.093 258.8);

Tailwind

colors: {
  custom: {
    50: '#8ca0c8',
    500: '#587bb1',
    950: '#000000',
  },
}

SCSS

$custom: #587bb1;
$custom-light: #8ca0c8;
$custom-dark: #000000;

JSON

{
  "hex": "#587bb1",
  "rgb": {
    "r": 88,
    "g": 123,
    "b": 177
  },
  "hsl": {
    "h": 216.404,
    "s": 36.327,
    "l": 51.961
  },
  "oklch": {
    "l": 0.57973,
    "c": 0.09279,
    "h": 258.8
  },
  "luminance": 0.19415
}

Semantic roles & 50–950 ramp

primary

#587BB1

secondary

#C6B79F

accent

#A05BCC

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #587BB1

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

Preview Lab → · Contrast checker → · Palette generator →