#4277DC#4277DC

#4277DC is a mid, vivid blue. Relative luminance 0.195; OKLCH L 58.5% C 0.165 H 261.8°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#4277DC
RGB	rgb(66, 119, 220)
HSL	hsl(219, 69%, 56%)
HSV	hsv(219, 70%, 86%)
CMYK	cmyk(70%, 45.9%, 0%, 13.7%)
CIE-LAB	lab(51.29, 15.83, -56.86)
CIE-LCH	lch(51.29, 59.03, 285.56°)
OKLab	oklab(58.53% -0.0233 -0.1629)
OKLCH	oklch(58.53% 0.165 261.8)
XYZ	xyz(21.7573, 19.5169, 70.3168)
Luminance	0.1952 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4277DC #DCA742

analogous

#42C4DC #4277DC #5A42DC

triadic

#4277DC #DC4277 #77DC42

tetradic

#4277DC #DC42C4 #DCA742 #42DC5A

square

#4277DC #DC42C4 #DCA742 #42DC5A

split-complementary

#4277DC #DC5A42 #C4DC42

monochromatic

#1A408A #2358BE #4277DC #769CE6 #A9C1EF

Accessibility & contrast

On white

4.28

#4277DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#4277DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4277DC

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4277DC	#FFFFFF	#000000	##000000
##4277DC	1.00	4.28	4.90	4.90
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4382E0

Deuteranopia (green-blind)

#2274DA

Tritanopia (blue-blind)

#008F9F

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4277dc;
/* rgb */ color: rgb(66, 119, 220);
/* oklch */ color: oklch(58.5% 0.165 261.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#4277dc",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 220
  },
  "hsl": {
    "h": 219.351,
    "s": 68.75,
    "l": 56.078
  },
  "oklch": {
    "l": 0.58526,
    "c": 0.16456,
    "h": 261.8
  },
  "luminance": 0.19519
}

Semantic roles & 50–950 ramp

primary

#4277DC

secondary

#DDC79D

accent

#AF3CEC

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4277DC

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

Preview Lab → · Contrast checker → · Palette generator →