#5991EB#5991EB

#5991EB is a light, vivid blue. Relative luminance 0.284; OKLCH L 66.0% C 0.147 H 259.5°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#5991EB
RGB	rgb(89, 145, 235)
HSL	hsl(217, 78%, 64%)
HSV	hsv(217, 62%, 92%)
CMYK	cmyk(62.1%, 38.3%, 0%, 7.8%)
CIE-LAB	lab(60.22, 8.97, -50.93)
CIE-LCH	lch(60.22, 51.71, 279.99°)
OKLab	oklab(65.97% -0.0269 -0.1447)
OKLCH	oklch(65.97% 0.147 259.5)
XYZ	xyz(29.2353, 28.3701, 82.5165)
Luminance	0.2837 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5991EB #EBB359

analogous

#59DAEB #5991EB #6A59EB

triadic

#5991EB #EB5991 #91EB59

tetradic

#5991EB #EB59DA #EBB359 #59EB6A

square

#5991EB #EB59DA #EBB359 #59EB6A

split-complementary

#5991EB #EB6A59 #DAEB59

monochromatic

#1652B4 #226DE4 #5991EB #90B5F2 #C6D9F8

Accessibility & contrast

On white

3.15

#5991EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#5991EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5991EB

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5991EB	#FFFFFF	#000000	##000000
##5991EB	1.00	3.15	6.67	6.67
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.67	21.00	1.00	1.00
##000000	6.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A99EF

Deuteranopia (green-blind)

#558BE9

Tritanopia (blue-blind)

#00A5B3

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #5991eb;
/* rgb */ color: rgb(89, 145, 235);
/* oklch */ color: oklch(66.0% 0.147 259.5);

Tailwind

colors: {
  custom: {
    50: '#94b0f2',
    500: '#5991eb',
    950: '#000000',
  },
}

SCSS

$custom: #5991eb;
$custom-light: #94b0f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5991eb",
  "rgb": {
    "r": 89,
    "g": 145,
    "b": 235
  },
  "hsl": {
    "h": 216.986,
    "s": 78.495,
    "l": 63.529
  },
  "oklch": {
    "l": 0.65967,
    "c": 0.1472,
    "h": 259.5
  },
  "luminance": 0.28373
}

Semantic roles & 50–950 ramp

primary

#5991EB

secondary

#EAD6B6

accent

#8B0BDB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5991EB

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

Preview Lab → · Contrast checker → · Palette generator →