#587EB5#587EB5

#587EB5 is a mid, moderate blue. Relative luminance 0.203; OKLCH L 58.8% C 0.095 H 257.6°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#587EB5
RGB	rgb(88, 126, 181)
HSL	hsl(215, 39%, 53%)
HSV	hsv(215, 51%, 71%)
CMYK	cmyk(51.4%, 30.4%, 0%, 29%)
CIE-LAB	lab(52.21, 2.51, -33.10)
CIE-LCH	lch(52.21, 33.20, 274.33°)
OKLab	oklab(58.85% -0.0205 -0.093)
OKLCH	oklch(58.85% 0.095 257.6)
XYZ	xyz(19.8230, 20.3312, 46.5868)
Luminance	0.2033 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#587EB5 #B58F58

analogous

#58ACB5 #587EB5 #6158B5

triadic

#587EB5 #B5587E #7EB558

tetradic

#587EB5 #B558AC #B58F58 #58B561

square

#587EB5 #B558AC #B58F58 #58B561

split-complementary

#587EB5 #B56158 #ACB558

monochromatic

#2D4466 #406190 #587EB5 #829FC8 #ADC0DB

Accessibility & contrast

On white

4.14

#587EB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#587EB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #587EB5

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##587EB5	#FFFFFF	#000000	##000000
##587EB5	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6881B7

Deuteranopia (green-blind)

#5D79B4

Tritanopia (blue-blind)

#2B8A91

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #587eb5;
/* rgb */ color: rgb(88, 126, 181);
/* oklch */ color: oklch(58.8% 0.095 257.6);

Tailwind

colors: {
  custom: {
    50: '#8da3cb',
    500: '#587eb5',
    950: '#000000',
  },
}

SCSS

$custom: #587eb5;
$custom-light: #8da3cb;
$custom-dark: #000000;

JSON

{
  "hex": "#587eb5",
  "rgb": {
    "r": 88,
    "g": 126,
    "b": 181
  },
  "hsl": {
    "h": 215.484,
    "s": 38.589,
    "l": 52.745
  },
  "oklch": {
    "l": 0.58848,
    "c": 0.0952,
    "h": 257.6
  },
  "luminance": 0.20333
}

Semantic roles & 50–950 ramp

primary

#587EB5

secondary

#C9B8A0

accent

#9F59CF

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0D0F13

muted

#7D7F82

Preview Lab

Preview with #587EB5

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

Preview Lab → · Contrast checker → · Palette generator →