#4277DB#4277DB

#4277DB is a mid, vivid blue. Relative luminance 0.195; OKLCH L 58.5% C 0.163 H 261.7°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#4277DB
RGB	rgb(66, 119, 219)
HSL	hsl(219, 68%, 56%)
HSV	hsv(219, 70%, 86%)
CMYK	cmyk(69.9%, 45.7%, 0%, 14.1%)
CIE-LAB	lab(51.23, 15.48, -56.40)
CIE-LCH	lch(51.23, 58.48, 285.34°)
OKLab	oklab(58.46% -0.0235 -0.1615)
OKLCH	oklch(58.46% 0.163 261.7)
XYZ	xyz(21.6252, 19.4641, 69.6214)
Luminance	0.1947 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4277DB #DBA642

analogous

#42C3DB #4277DB #5942DB

triadic

#4277DB #DB4277 #77DB42

tetradic

#4277DB #DB42C3 #DBA642 #42DB59

square

#4277DB #DB42C3 #DBA642 #42DB59

split-complementary

#4277DB #DB5942 #C3DB42

monochromatic

#1A4089 #2459BC #4277DB #759CE5 #A9C1EF

Accessibility & contrast

On white

4.29

#4277DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#4277DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4277DB

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4277DB	#FFFFFF	#000000	##000000
##4277DB	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4482DF

Deuteranopia (green-blind)

#2473D9

Tritanopia (blue-blind)

#008E9E

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4277db;
/* rgb */ color: rgb(66, 119, 219);
/* oklch */ color: oklch(58.5% 0.163 261.7);

Tailwind

colors: {
  custom: {
    50: '#889de7',
    500: '#4277db',
    950: '#000000',
  },
}

SCSS

$custom: #4277db;
$custom-light: #889de7;
$custom-dark: #000000;

JSON

{
  "hex": "#4277db",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 219
  },
  "hsl": {
    "h": 219.216,
    "s": 68,
    "l": 55.882
  },
  "oklch": {
    "l": 0.5846,
    "c": 0.16323,
    "h": 261.7
  },
  "luminance": 0.19466
}

Semantic roles & 50–950 ramp

primary

#4277DB

secondary

#DCC69D

accent

#AF3DEB

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4277DB

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

Preview Lab → · Contrast checker → · Palette generator →