#4275BD#4275BD

#4275BD is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.1% C 0.125 H 257.3°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4275BD
RGB	rgb(66, 117, 189)
HSL	hsl(215, 48%, 50%)
HSV	hsv(215, 65%, 74%)
CMYK	cmyk(65.1%, 38.1%, 0%, 25.9%)
CIE-LAB	lab(48.95, 6.06, -42.92)
CIE-LCH	lch(48.95, 43.34, 278.03°)
OKLab	oklab(56.14% -0.0275 -0.122)
OKLCH	oklch(56.14% 0.125 257.3)
XYZ	xyz(17.7901, 17.5532, 50.5848)
Luminance	0.1756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4275BD #BD8A42

analogous

#42B2BD #4275BD #4D42BD

triadic

#4275BD #BD4275 #75BD42

tetradic

#4275BD #BD42B2 #BD8A42 #42BD4D

square

#4275BD #BD42B2 #BD8A42 #42BD4D

split-complementary

#4275BD #BD4D42 #B2BD42

monochromatic

#223D62 #325990 #4275BD #6F96CD #9DB7DD

Accessibility & contrast

On white

4.66

#4275BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#4275BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4275BD

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4275BD	#FFFFFF	#000000	##FFFFFF
##4275BD	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#557BC0

Deuteranopia (green-blind)

#446FBC

Tritanopia (blue-blind)

#008590

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4275bd;
/* rgb */ color: rgb(66, 117, 189);
/* oklch */ color: oklch(56.1% 0.125 257.3);

Tailwind

colors: {
  custom: {
    50: '#829cd1',
    500: '#4275bd',
    950: '#000000',
  },
}

SCSS

$custom: #4275bd;
$custom-light: #829cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#4275bd",
  "rgb": {
    "r": 66,
    "g": 117,
    "b": 189
  },
  "hsl": {
    "h": 215.122,
    "s": 48.235,
    "l": 50
  },
  "oklch": {
    "l": 0.56144,
    "c": 0.12506,
    "h": 257.3
  },
  "luminance": 0.17555
}

Semantic roles & 50–950 ramp

primary

#4275BD

secondary

#C9B292

accent

#9F50D8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4275BD

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

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