#4F81DF#4F81DF

#4F81DF is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.4% C 0.153 H 261.8°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#4F81DF
RGB	rgb(79, 129, 223)
HSL	hsl(219, 69%, 59%)
HSV	hsv(219, 65%, 87%)
CMYK	cmyk(64.6%, 42.2%, 0%, 12.5%)
CIE-LAB	lab(54.75, 12.77, -52.98)
CIE-LCH	lch(54.75, 54.49, 283.56°)
OKLab	oklab(61.4% -0.0217 -0.1511)
OKLCH	oklch(61.4% 0.153 261.8)
XYZ	xyz(24.3893, 22.6882, 72.8917)
Luminance	0.2269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F81DF #DFAD4F

analogous

#4FC9DF #4F81DF #654FDF

triadic

#4F81DF #DF4F81 #81DF4F

tetradic

#4F81DF #DF4FC9 #DFAD4F #4FDF65

square

#4F81DF #DF4FC9 #DFAD4F #4FDF65

split-complementary

#4F81DF #DF654F #C9DF4F

monochromatic

#1C4798 #255FCC #4F81DF #83A6E8 #B7CBF2

Accessibility & contrast

On white

3.79

#4F81DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#4F81DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F81DF

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F81DF	#FFFFFF	#000000	##000000
##4F81DF	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#558AE3

Deuteranopia (green-blind)

#3F7DDD

Tritanopia (blue-blind)

#0096A5

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4f81df;
/* rgb */ color: rgb(79, 129, 223);
/* oklch */ color: oklch(61.4% 0.153 261.8);

Tailwind

colors: {
  custom: {
    50: '#8ea5e9',
    500: '#4f81df',
    950: '#000000',
  },
}

SCSS

$custom: #4f81df;
$custom-light: #8ea5e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4f81df",
  "rgb": {
    "r": 79,
    "g": 129,
    "b": 223
  },
  "hsl": {
    "h": 219.167,
    "s": 69.231,
    "l": 59.216
  },
  "oklch": {
    "l": 0.61401,
    "c": 0.15266,
    "h": 261.8
  },
  "luminance": 0.2269
}

Semantic roles & 50–950 ramp

primary

#4F81DF

secondary

#E1CEA9

accent

#AF3CEC

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4F81DF

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

Preview Lab → · Contrast checker → · Palette generator →