#4251D0#4251D0

#4251D0 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 50.2% C 0.194 H 272.1°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#4251D0
RGB	rgb(66, 81, 208)
HSL	hsl(234, 60%, 54%)
HSV	hsv(234, 68%, 82%)
CMYK	cmyk(68.3%, 61.1%, 0%, 18.4%)
CIE-LAB	lab(40.57, 35.50, -67.37)
CIE-LCH	lch(40.57, 76.15, 297.79°)
OKLab	oklab(50.17% 0.0073 -0.1943)
OKLCH	oklch(50.17% 0.194 272.1)
XYZ	xyz(16.5705, 11.5956, 61.0272)
Luminance	0.1160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4251D0 #D0C142

analogous

#4298D0 #4251D0 #7A42D0

triadic

#4251D0 #D04251 #51D042

tetradic

#4251D0 #D04298 #D0C142 #42D07A

square

#4251D0 #D04298 #D0C142 #42D07A

split-complementary

#4251D0 #D07A42 #98D042

monochromatic

#1E2879 #2A38AA #4251D0 #737EDC #A4ABE8

Accessibility & contrast

On white

6.33

#4251D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#4251D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4251D0

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4251D0	#FFFFFF	#000000	##FFFFFF
##4251D0	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066D4

Deuteranopia (green-blind)

#0059CE

Tritanopia (blue-blind)

#007189

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4251d0;
/* rgb */ color: rgb(66, 81, 208);
/* oklch */ color: oklch(50.2% 0.194 272.1);

Tailwind

colors: {
  custom: {
    50: '#8882df',
    500: '#4251d0',
    950: '#000000',
  },
}

SCSS

$custom: #4251d0;
$custom-light: #8882df;
$custom-dark: #000000;

JSON

{
  "hex": "#4251d0",
  "rgb": {
    "r": 66,
    "g": 81,
    "b": 208
  },
  "hsl": {
    "h": 233.662,
    "s": 60.169,
    "l": 53.725
  },
  "oklch": {
    "l": 0.50173,
    "c": 0.19448,
    "h": 272.1
  },
  "luminance": 0.11597
}

Semantic roles & 50–950 ramp

primary

#4251D0

secondary

#D5CF99

accent

#D344E3

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #4251D0

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

Preview Lab → · Contrast checker → · Palette generator →