#587FBC#587FBC

#587FBC is a mid, moderate blue. Relative luminance 0.209; OKLCH L 59.4% C 0.104 H 259.1°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#587FBC
RGB	rgb(88, 127, 188)
HSL	hsl(217, 43%, 54%)
HSV	hsv(217, 53%, 74%)
CMYK	cmyk(53.2%, 32.4%, 0%, 26.3%)
CIE-LAB	lab(52.82, 4.12, -36.16)
CIE-LCH	lch(52.82, 36.40, 276.51°)
OKLab	oklab(59.43% -0.0197 -0.1018)
OKLCH	oklch(59.43% 0.104 259.1)
XYZ	xyz(20.6879, 20.8827, 50.5078)
Luminance	0.2088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587FBC #BC9558

analogous

#58B1BC #587FBC #6358BC

triadic

#587FBC #BC587F #7FBC58

tetradic

#587FBC #BC58B1 #BC9558 #58BC63

square

#587FBC #BC58B1 #BC9558 #58BC63

split-complementary

#587FBC #BC6358 #B1BC58

monochromatic

#2C466E #3E6199 #587FBC #84A0CE #AFC2DF

Accessibility & contrast

On white

4.06

#587FBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#587FBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587FBC

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587FBC	#FFFFFF	#000000	##000000
##587FBC	1.00	4.06	5.18	5.18
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6783BF

Deuteranopia (green-blind)

#5B7ABB

Tritanopia (blue-blind)

#228C95

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #587fbc;
/* rgb */ color: rgb(88, 127, 188);
/* oklch */ color: oklch(59.4% 0.104 259.1);

Tailwind

colors: {
  custom: {
    50: '#8da3d0',
    500: '#587fbc',
    950: '#000000',
  },
}

SCSS

$custom: #587fbc;
$custom-light: #8da3d0;
$custom-dark: #000000;

JSON

{
  "hex": "#587fbc",
  "rgb": {
    "r": 88,
    "g": 127,
    "b": 188
  },
  "hsl": {
    "h": 216.6,
    "s": 42.735,
    "l": 54.118
  },
  "oklch": {
    "l": 0.59432,
    "c": 0.10373,
    "h": 259.1
  },
  "luminance": 0.20884
}

Semantic roles & 50–950 ramp

primary

#587FBC

secondary

#CDBDA3

accent

#A255D3

background

#F9FAFC

surface

#F1F3F9

border

#CBCDD2

text

#0D0F14

muted

#7E7F82

Preview Lab

Preview with #587FBC

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

Preview Lab → · Contrast checker → · Palette generator →