#4E91FB#4E91FB

#4E91FB is a light, vivid blue. Relative luminance 0.288; OKLCH L 66.4% C 0.172 H 259.2°. Best body text is #000000 at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#4E91FB
RGB	rgb(78, 145, 251)
HSL	hsl(217, 96%, 65%)
HSV	hsv(217, 69%, 98%)
CMYK	cmyk(68.9%, 42.2%, 0%, 1.6%)
CIE-LAB	lab(60.63, 12.65, -59.12)
CIE-LCH	lch(60.63, 60.45, 282.07°)
OKLab	oklab(66.44% -0.0321 -0.1689)
OKLCH	oklch(66.44% 0.172 259.2)
XYZ	xyz(30.6736, 28.8323, 95.1967)
Luminance	0.2884 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E91FB #FBB84E

analogous

#4EE8FB #4E91FB #624EFB

triadic

#4E91FB #FB4E91 #91FB4E

tetradic

#4E91FB #FB4EE8 #FBB84E #4EFB62

square

#4E91FB #FB4EE8 #FBB84E #4EFB62

split-complementary

#4E91FB #FB624E #E8FB4E

monochromatic

#0551CA #126CFA #4E91FB #8AB6FC #C6DBFE

Accessibility & contrast

On white

3.10

#4E91FB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.77

#4E91FB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E91FB

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E91FB	#FFFFFF	#000000	##000000
##4E91FB	1.00	3.10	6.77	6.77
#FFFFFF	3.10	1.00	21.00	21.00
#000000	6.77	21.00	1.00	1.00
##000000	6.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E9BFF

Deuteranopia (green-blind)

#408BF9

Tritanopia (blue-blind)

#00AABA

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #4e91fb;
/* rgb */ color: rgb(78, 145, 251);
/* oklch */ color: oklch(66.4% 0.172 259.2);

Tailwind

colors: {
  custom: {
    50: '#92b0fd',
    500: '#4e91fb',
    950: '#000000',
  },
}

SCSS

$custom: #4e91fb;
$custom-light: #92b0fd;
$custom-dark: #000000;

JSON

{
  "hex": "#4e91fb",
  "rgb": {
    "r": 78,
    "g": 145,
    "b": 251
  },
  "hsl": {
    "h": 216.763,
    "s": 95.58,
    "l": 64.51
  },
  "oklch": {
    "l": 0.66442,
    "c": 0.17194,
    "h": 259.2
  },
  "luminance": 0.28836
}

Semantic roles & 50–950 ramp

primary

#4E91FB

secondary

#F0D9B5

accent

#8D00E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1018

muted

#7E7F86

Preview Lab

Preview with #4E91FB

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

Preview Lab → · Contrast checker → · Palette generator →