#4274DB#4274DB

#4274DB is a mid, vivid blue. Relative luminance 0.188; OKLCH L 57.8% C 0.167 H 262.8°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4274DB
RGB	rgb(66, 116, 219)
HSL	hsl(220, 68%, 56%)
HSV	hsv(220, 70%, 86%)
CMYK	cmyk(69.9%, 47%, 0%, 14.1%)
CIE-LAB	lab(50.41, 17.34, -57.71)
CIE-LCH	lch(50.41, 60.26, 286.73°)
OKLab	oklab(57.83% -0.0208 -0.1654)
OKLCH	oklch(57.83% 0.167 262.8)
XYZ	xyz(21.2738, 18.7613, 69.5042)
Luminance	0.1876 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4274DB #DBA942

analogous

#42C0DB #4274DB #5C42DB

triadic

#4274DB #DB4274 #74DB42

tetradic

#4274DB #DB42C0 #DBA942 #42DB5C

square

#4274DB #DB42C0 #DBA942 #42DB5C

split-complementary

#4274DB #DB5C42 #C0DB42

monochromatic

#1A3E89 #2456BC #4274DB #759AE5 #A9C0EF

Accessibility & contrast

On white

4.42

#4274DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#4274DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4274DB

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4274DB	#FFFFFF	#000000	##000000
##4274DB	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D7FDF

Deuteranopia (green-blind)

#1771D9

Tritanopia (blue-blind)

#008C9D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4274db;
/* rgb */ color: rgb(66, 116, 219);
/* oklch */ color: oklch(57.8% 0.167 262.8);

Tailwind

colors: {
  custom: {
    50: '#889be7',
    500: '#4274db',
    950: '#000000',
  },
}

SCSS

$custom: #4274db;
$custom-light: #889be7;
$custom-dark: #000000;

JSON

{
  "hex": "#4274db",
  "rgb": {
    "r": 66,
    "g": 116,
    "b": 219
  },
  "hsl": {
    "h": 220.392,
    "s": 68,
    "l": 55.882
  },
  "oklch": {
    "l": 0.57831,
    "c": 0.16675,
    "h": 262.8
  },
  "luminance": 0.18764
}

Semantic roles & 50–950 ramp

primary

#4274DB

secondary

#DCC79D

accent

#B23DEB

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4274DB

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

Preview Lab → · Contrast checker → · Palette generator →