#4277D8#4277D8

#4277D8 is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.3% C 0.159 H 261.3°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#4277D8
RGB	rgb(66, 119, 216)
HSL	hsl(219, 66%, 55%)
HSV	hsv(219, 69%, 85%)
CMYK	cmyk(69.4%, 44.9%, 0%, 15.3%)
CIE-LAB	lab(51.05, 14.40, -54.99)
CIE-LCH	lch(51.05, 56.84, 284.68°)
OKLab	oklab(58.26% -0.024 -0.1574)
OKLCH	oklch(58.26% 0.159 261.3)
XYZ	xyz(21.2338, 19.3076, 67.5601)
Luminance	0.1931 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4277D8 #D8A342

analogous

#42C2D8 #4277D8 #5842D8

triadic

#4277D8 #D84277 #77D842

tetradic

#4277D8 #D842C2 #D8A342 #42D858

square

#4277D8 #D842C2 #D8A342 #42D858

split-complementary

#4277D8 #D85842 #C2D842

monochromatic

#1B4084 #2659B7 #4277D8 #759CE2 #A7C0ED

Accessibility & contrast

On white

4.32

#4277D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#4277D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4277D8

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4277D8	#FFFFFF	#000000	##000000
##4277D8	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4681DC

Deuteranopia (green-blind)

#2973D6

Tritanopia (blue-blind)

#008E9D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4277d8;
/* rgb */ color: rgb(66, 119, 216);
/* oklch */ color: oklch(58.3% 0.159 261.3);

Tailwind

colors: {
  custom: {
    50: '#879de5',
    500: '#4277d8',
    950: '#000000',
  },
}

SCSS

$custom: #4277d8;
$custom-light: #879de5;
$custom-dark: #000000;

JSON

{
  "hex": "#4277d8",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 216
  },
  "hsl": {
    "h": 218.8,
    "s": 65.789,
    "l": 55.294
  },
  "oklch": {
    "l": 0.58262,
    "c": 0.15921,
    "h": 261.3
  },
  "luminance": 0.1931
}

Semantic roles & 50–950 ramp

primary

#4277D8

secondary

#DAC49C

accent

#AD3FE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4277D8

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

Preview Lab → · Contrast checker → · Palette generator →