#5191ED#5191ED

#5191ED is a light, vivid blue. Relative luminance 0.281; OKLCH L 65.7% C 0.153 H 257.6°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#5191ED
RGB	rgb(81, 145, 237)
HSL	hsl(215, 81%, 62%)
HSV	hsv(215, 66%, 93%)
CMYK	cmyk(65.8%, 38.8%, 0%, 7.1%)
CIE-LAB	lab(59.99, 8.29, -52.42)
CIE-LCH	lch(59.99, 53.07, 278.98°)
OKLab	oklab(65.73% -0.0327 -0.1492)
OKLCH	oklch(65.73% 0.153 257.6)
XYZ	xyz(28.7993, 28.1117, 84.0127)
Luminance	0.2812 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5191ED #EDAD51

analogous

#51DFED #5191ED #5F51ED

triadic

#5191ED #ED5191 #91ED51

tetradic

#5191ED #ED51DF #EDAD51 #51ED5F

square

#5191ED #ED51DF #EDAD51 #51ED5F

split-complementary

#5191ED #ED5F51 #DFED51

monochromatic

#1254B1 #1A6EE7 #5191ED #88B4F3 #C0D7F8

Accessibility & contrast

On white

3.17

#5191ED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#5191ED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5191ED

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5191ED	#FFFFFF	#000000	##000000
##5191ED	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6898F1

Deuteranopia (green-blind)

#508AEB

Tritanopia (blue-blind)

#00A6B3

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #5191ed;
/* rgb */ color: rgb(81, 145, 237);
/* oklch */ color: oklch(65.7% 0.153 257.6);

Tailwind

colors: {
  custom: {
    50: '#91b0f3',
    500: '#5191ed',
    950: '#000000',
  },
}

SCSS

$custom: #5191ed;
$custom-light: #91b0f3;
$custom-dark: #000000;

JSON

{
  "hex": "#5191ed",
  "rgb": {
    "r": 81,
    "g": 145,
    "b": 237
  },
  "hsl": {
    "h": 215.385,
    "s": 81.25,
    "l": 62.353
  },
  "oklch": {
    "l": 0.65729,
    "c": 0.15278,
    "h": 257.6
  },
  "luminance": 0.28115
}

Semantic roles & 50–950 ramp

primary

#5191ED

secondary

#E9D2B0

accent

#8608DE

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5191ED

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

Preview Lab → · Contrast checker → · Palette generator →