#4E81CB#4E81CB

#4E81CB is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.2% C 0.126 H 257.7°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#4E81CB
RGB	rgb(78, 129, 203)
HSL	hsl(216, 55%, 55%)
HSV	hsv(216, 62%, 80%)
CMYK	cmyk(61.6%, 36.5%, 0%, 20.4%)
CIE-LAB	lab(53.63, 5.77, -43.47)
CIE-LCH	lch(53.63, 43.85, 277.56°)
OKLab	oklab(60.17% -0.0269 -0.1233)
OKLCH	oklch(60.17% 0.126 257.7)
XYZ	xyz(21.7678, 21.6300, 59.5162)
Luminance	0.2163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E81CB #CB984E

analogous

#4EBFCB #4E81CB #594ECB

triadic

#4E81CB #CB4E81 #81CB4E

tetradic

#4E81CB #CB4EBF #CB984E #4ECB59

square

#4E81CB #CB4EBF #CB984E #4ECB59

split-complementary

#4E81CB #CB594E #BFCB4E

monochromatic

#24477B #3263AA #4E81CB #7DA3D9 #ADC4E7

Accessibility & contrast

On white

3.94

#4E81CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#4E81CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E81CB

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E81CB	#FFFFFF	#000000	##000000
##4E81CB	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6187CE

Deuteranopia (green-blind)

#507BC9

Tritanopia (blue-blind)

#00929C

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4e81cb;
/* rgb */ color: rgb(78, 129, 203);
/* oklch */ color: oklch(60.2% 0.126 257.7);

Tailwind

colors: {
  custom: {
    50: '#8aa5db',
    500: '#4e81cb',
    950: '#000000',
  },
}

SCSS

$custom: #4e81cb;
$custom-light: #8aa5db;
$custom-dark: #000000;

JSON

{
  "hex": "#4e81cb",
  "rgb": {
    "r": 78,
    "g": 129,
    "b": 203
  },
  "hsl": {
    "h": 215.52,
    "s": 54.585,
    "l": 55.098
  },
  "oklch": {
    "l": 0.60173,
    "c": 0.12617,
    "h": 257.7
  },
  "luminance": 0.21632
}

Semantic roles & 50–950 ramp

primary

#4E81CB

secondary

#D5BFA0

accent

#A24ADE

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #4E81CB

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

Preview Lab → · Contrast checker → · Palette generator →