#4253CE#4253CE

#4253CE is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.4% C 0.189 H 271.7°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#4253CE
RGB	rgb(66, 83, 206)
HSL	hsl(233, 59%, 53%)
HSV	hsv(233, 68%, 81%)
CMYK	cmyk(68%, 59.7%, 0%, 19.2%)
CIE-LAB	lab(40.90, 33.55, -65.68)
CIE-LCH	lch(40.90, 73.76, 297.06°)
OKLab	oklab(50.37% 0.0058 -0.1893)
OKLCH	oklch(50.37% 0.189 271.7)
XYZ	xyz(16.4768, 11.7994, 59.7897)
Luminance	0.1180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4253CE #CEBD42

analogous

#4299CE #4253CE #7742CE

triadic

#4253CE #CE4253 #53CE42

tetradic

#4253CE #CE4299 #CEBD42 #42CE77

square

#4253CE #CE4299 #CEBD42 #42CE77

split-complementary

#4253CE #CE7742 #99CE42

monochromatic

#1F2977 #2B3AA7 #4253CE #737FDB #A3ABE7

Accessibility & contrast

On white

6.25

#4253CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#4253CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4253CE

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4253CE	#FFFFFF	#000000	##FFFFFF
##4253CE	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067D2

Deuteranopia (green-blind)

#005ACC

Tritanopia (blue-blind)

#007288

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4253ce;
/* rgb */ color: rgb(66, 83, 206);
/* oklch */ color: oklch(50.4% 0.189 271.7);

Tailwind

colors: {
  custom: {
    50: '#8783de',
    500: '#4253ce',
    950: '#000000',
  },
}

SCSS

$custom: #4253ce;
$custom-light: #8783de;
$custom-dark: #000000;

JSON

{
  "hex": "#4253ce",
  "rgb": {
    "r": 66,
    "g": 83,
    "b": 206
  },
  "hsl": {
    "h": 232.714,
    "s": 58.824,
    "l": 53.333
  },
  "oklch": {
    "l": 0.50367,
    "c": 0.18944,
    "h": 271.7
  },
  "luminance": 0.11801
}

Semantic roles & 50–950 ramp

primary

#4253CE

secondary

#D4CD98

accent

#CF46E2

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #4253CE

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

Preview Lab → · Contrast checker → · Palette generator →