#4274D8#4274D8

#4274D8 is a mid, vivid blue. Relative luminance 0.186; OKLCH L 57.6% C 0.163 H 262.5°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#4274D8
RGB	rgb(66, 116, 216)
HSL	hsl(220, 66%, 55%)
HSV	hsv(220, 69%, 85%)
CMYK	cmyk(69.4%, 46.3%, 0%, 15.3%)
CIE-LAB	lab(50.22, 16.27, -56.31)
CIE-LCH	lch(50.22, 58.61, 286.11°)
OKLab	oklab(57.63% -0.0213 -0.1613)
OKLCH	oklch(57.63% 0.163 262.5)
XYZ	xyz(20.8824, 18.6047, 67.4430)
Luminance	0.1861 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4274D8 #D8A642

analogous

#42BFD8 #4274D8 #5B42D8

triadic

#4274D8 #D84274 #74D842

tetradic

#4274D8 #D842BF #D8A642 #42D85B

square

#4274D8 #D842BF #D8A642 #42D85B

split-complementary

#4274D8 #D85B42 #BFD842

monochromatic

#1B3E84 #2656B7 #4274D8 #7599E2 #A7BFED

Accessibility & contrast

On white

4.45

#4274D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#4274D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4274D8

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4274D8	#FFFFFF	#000000	##000000
##4274D8	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#407FDC

Deuteranopia (green-blind)

#1F71D6

Tritanopia (blue-blind)

#008B9B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4274d8;
/* rgb */ color: rgb(66, 116, 216);
/* oklch */ color: oklch(57.6% 0.163 262.5);

Tailwind

colors: {
  custom: {
    50: '#879be5',
    500: '#4274d8',
    950: '#000000',
  },
}

SCSS

$custom: #4274d8;
$custom-light: #879be5;
$custom-dark: #000000;

JSON

{
  "hex": "#4274d8",
  "rgb": {
    "r": 66,
    "g": 116,
    "b": 216
  },
  "hsl": {
    "h": 220,
    "s": 65.789,
    "l": 55.294
  },
  "oklch": {
    "l": 0.5763,
    "c": 0.16273,
    "h": 262.5
  },
  "luminance": 0.18607
}

Semantic roles & 50–950 ramp

primary

#4274D8

secondary

#DAC59C

accent

#B03FE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4274D8

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

Preview Lab → · Contrast checker → · Palette generator →