#4275BA#4275BA

#4275BA is a mid, vivid cyan. Relative luminance 0.174; OKLCH L 56.0% C 0.121 H 256.5°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#4275BA
RGB	rgb(66, 117, 186)
HSL	hsl(215, 48%, 49%)
HSV	hsv(215, 65%, 73%)
CMYK	cmyk(64.5%, 37.1%, 0%, 27.1%)
CIE-LAB	lab(48.79, 5.01, -41.44)
CIE-LCH	lch(48.79, 41.74, 276.89°)
OKLab	oklab(55.97% -0.0283 -0.1177)
OKLCH	oklch(55.97% 0.121 256.5)
XYZ	xyz(17.4678, 17.4243, 48.8875)
Luminance	0.1743 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4275BA #BA8742

analogous

#42B1BA #4275BA #4B42BA

triadic

#4275BA #BA4275 #75BA42

tetradic

#4275BA #BA42B1 #BA8742 #42BA4B

square

#4275BA #BA42B1 #BA8742 #42BA4B

split-complementary

#4275BA #BA4B42 #B1BA42

monochromatic

#223C60 #32598D #4275BA #6E96CB #9BB6DB

Accessibility & contrast

On white

4.68

#4275BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#4275BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4275BA

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4275BA	#FFFFFF	#000000	##FFFFFF
##4275BA	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#577ABD

Deuteranopia (green-blind)

#466FB9

Tritanopia (blue-blind)

#00858E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4275ba;
/* rgb */ color: rgb(66, 117, 186);
/* oklch */ color: oklch(56.0% 0.121 256.5);

Tailwind

colors: {
  custom: {
    50: '#829ccf',
    500: '#4275ba',
    950: '#000000',
  },
}

SCSS

$custom: #4275ba;
$custom-light: #829ccf;
$custom-dark: #000000;

JSON

{
  "hex": "#4275ba",
  "rgb": {
    "r": 66,
    "g": 117,
    "b": 186
  },
  "hsl": {
    "h": 214.5,
    "s": 47.619,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55968,
    "c": 0.12101,
    "h": 256.5
  },
  "luminance": 0.17426
}

Semantic roles & 50–950 ramp

primary

#4275BA

secondary

#C8B090

accent

#9E51D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #4275BA

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

Preview Lab → · Contrast checker → · Palette generator →