#4275CA#4275CA

#4275CA is a mid, vivid blue. Relative luminance 0.181; OKLCH L 56.9% C 0.143 H 260.0°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#4275CA
RGB	rgb(66, 117, 202)
HSL	hsl(218, 56%, 53%)
HSV	hsv(218, 67%, 79%)
CMYK	cmyk(67.3%, 42.1%, 0%, 20.8%)
CIE-LAB	lab(49.67, 10.65, -49.23)
CIE-LCH	lch(49.67, 50.37, 282.20°)
OKLab	oklab(56.94% -0.0247 -0.1405)
OKLCH	oklch(56.94% 0.143 260)
XYZ	xyz(19.2649, 18.1432, 58.3524)
Luminance	0.1815 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4275CA #CA9742

analogous

#42B9CA #4275CA #5342CA

triadic

#4275CA #CA4275 #75CA42

tetradic

#4275CA #CA42B9 #CA9742 #42CA53

square

#4275CA #CA42B9 #CA9742 #42CA53

split-complementary

#4275CA #CA5342 #B9CA42

monochromatic

#203F72 #2D59A2 #4275CA #7298D7 #A2BBE5

Accessibility & contrast

On white

4.54

#4275CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#4275CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4275CA

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4275CA	#FFFFFF	#000000	##000000
##4275CA	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D7DCD

Deuteranopia (green-blind)

#3770C8

Tritanopia (blue-blind)

#008995

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4275ca;
/* rgb */ color: rgb(66, 117, 202);
/* oklch */ color: oklch(56.9% 0.143 260.0);

Tailwind

colors: {
  custom: {
    50: '#859cda',
    500: '#4275ca',
    950: '#000000',
  },
}

SCSS

$custom: #4275ca;
$custom-light: #859cda;
$custom-dark: #000000;

JSON

{
  "hex": "#4275ca",
  "rgb": {
    "r": 66,
    "g": 117,
    "b": 202
  },
  "hsl": {
    "h": 217.5,
    "s": 56.198,
    "l": 52.549
  },
  "oklch": {
    "l": 0.56936,
    "c": 0.14265,
    "h": 260
  },
  "luminance": 0.18145
}

Semantic roles & 50–950 ramp

primary

#4275CA

secondary

#D1BB96

accent

#A748DF

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4275CA

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

Preview Lab → · Contrast checker → · Palette generator →