#4274CB#4274CB

#4274CB is a mid, vivid blue. Relative luminance 0.180; OKLCH L 56.8% C 0.145 H 260.7°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#4274CB
RGB	rgb(66, 116, 203)
HSL	hsl(218, 57%, 53%)
HSV	hsv(218, 67%, 80%)
CMYK	cmyk(67.5%, 42.9%, 0%, 20.4%)
CIE-LAB	lab(49.45, 11.62, -50.16)
CIE-LCH	lch(49.45, 51.49, 283.05°)
OKLab	oklab(56.78% -0.0235 -0.1432)
OKLCH	oklch(56.78% 0.145 260.7)
XYZ	xyz(19.2678, 17.9589, 58.9393)
Luminance	0.1796 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4274CB #CB9942

analogous

#42B8CB #4274CB #5442CB

triadic

#4274CB #CB4274 #74CB42

tetradic

#4274CB #CB42B8 #CB9942 #42CB54

square

#4274CB #CB42B8 #CB9942 #42CB54

split-complementary

#4274CB #CB5442 #B8CB42

monochromatic

#203E73 #2D58A3 #4274CB #7297D8 #A2BBE5

Accessibility & contrast

On white

4.57

#4274CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#4274CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4274CB

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4274CB	#FFFFFF	#000000	##000000
##4274CB	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B7CCE

Deuteranopia (green-blind)

#3470C9

Tritanopia (blue-blind)

#008895

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4274cb;
/* rgb */ color: rgb(66, 116, 203);
/* oklch */ color: oklch(56.8% 0.145 260.7);

Tailwind

colors: {
  custom: {
    50: '#859bdb',
    500: '#4274cb',
    950: '#000000',
  },
}

SCSS

$custom: #4274cb;
$custom-light: #859bdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4274cb",
  "rgb": {
    "r": 66,
    "g": 116,
    "b": 203
  },
  "hsl": {
    "h": 218.102,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.56783,
    "c": 0.14516,
    "h": 260.7
  },
  "luminance": 0.17961
}

Semantic roles & 50–950 ramp

primary

#4274CB

secondary

#D2BC97

accent

#A848E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4274CB

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

Preview Lab → · Contrast checker → · Palette generator →