#4275BE#4275BE

#4275BE is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.2% C 0.126 H 257.5°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#4275BE
RGB	rgb(66, 117, 190)
HSL	hsl(215, 49%, 50%)
HSV	hsv(215, 65%, 75%)
CMYK	cmyk(65.3%, 38.4%, 0%, 25.5%)
CIE-LAB	lab(49.00, 6.41, -43.41)
CIE-LCH	lch(49.00, 43.88, 278.40°)
OKLab	oklab(56.2% -0.0273 -0.1234)
OKLCH	oklch(56.2% 0.126 257.5)
XYZ	xyz(17.8990, 17.5968, 51.1585)
Luminance	0.1760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4275BE #BE8B42

analogous

#42B3BE #4275BE #4D42BE

triadic

#4275BE #BE4275 #75BE42

tetradic

#4275BE #BE42B3 #BE8B42 #42BE4D

square

#4275BE #BE42B3 #BE8B42 #42BE4D

split-complementary

#4275BE #BE4D42 #B3BE42

monochromatic

#223D63 #325991 #4275BE #7096CE #9DB8DD

Accessibility & contrast

On white

4.65

#4275BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#4275BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4275BE

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4275BE	#FFFFFF	#000000	##FFFFFF
##4275BE	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#557BC1

Deuteranopia (green-blind)

#436FBD

Tritanopia (blue-blind)

#008690

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4275be;
/* rgb */ color: rgb(66, 117, 190);
/* oklch */ color: oklch(56.2% 0.126 257.5);

Tailwind

colors: {
  custom: {
    50: '#839cd2',
    500: '#4275be',
    950: '#000000',
  },
}

SCSS

$custom: #4275be;
$custom-light: #839cd2;
$custom-dark: #000000;

JSON

{
  "hex": "#4275be",
  "rgb": {
    "r": 66,
    "g": 117,
    "b": 190
  },
  "hsl": {
    "h": 215.323,
    "s": 48.819,
    "l": 50.196
  },
  "oklch": {
    "l": 0.56204,
    "c": 0.1264,
    "h": 257.5
  },
  "luminance": 0.17599
}

Semantic roles & 50–950 ramp

primary

#4275BE

secondary

#CAB392

accent

#A04FD8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4275BE

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

Preview Lab → · Contrast checker → · Palette generator →