#4277D0#4277D0

#4277D0 is a mid, vivid blue. Relative luminance 0.189; OKLCH L 57.7% C 0.148 H 260.1°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#4277D0
RGB	rgb(66, 119, 208)
HSL	hsl(218, 60%, 54%)
HSV	hsv(218, 68%, 82%)
CMYK	cmyk(68.3%, 42.8%, 0%, 18.4%)
CIE-LAB	lab(50.57, 11.55, -51.20)
CIE-LCH	lch(50.57, 52.49, 282.71°)
OKLab	oklab(57.75% -0.0254 -0.1463)
OKLCH	oklch(57.75% 0.148 260.1)
XYZ	xyz(20.2247, 18.9039, 62.2452)
Luminance	0.1891 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4277D0 #D09B42

analogous

#42BED0 #4277D0 #5442D0

triadic

#4277D0 #D04277 #77D042

tetradic

#4277D0 #D042BE #D09B42 #42D054

square

#4277D0 #D042BE #D09B42 #42D054

split-complementary

#4277D0 #D05442 #BED042

monochromatic

#1E4079 #2A5AAA #4277D0 #739ADC #A4BEE8

Accessibility & contrast

On white

4.39

#4277D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#4277D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4277D0

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4277D0	#FFFFFF	#000000	##000000
##4277D0	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D7FD3

Deuteranopia (green-blind)

#3572CE

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4277d0;
/* rgb */ color: rgb(66, 119, 208);
/* oklch */ color: oklch(57.7% 0.148 260.1);

Tailwind

colors: {
  custom: {
    50: '#869ddf',
    500: '#4277d0',
    950: '#000000',
  },
}

SCSS

$custom: #4277d0;
$custom-light: #869ddf;
$custom-dark: #000000;

JSON

{
  "hex": "#4277d0",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 208
  },
  "hsl": {
    "h": 217.606,
    "s": 60.169,
    "l": 53.725
  },
  "oklch": {
    "l": 0.57748,
    "c": 0.14846,
    "h": 260.1
  },
  "luminance": 0.18906
}

Semantic roles & 50–950 ramp

primary

#4277D0

secondary

#D5BF99

accent

#A844E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4277D0

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

Preview Lab → · Contrast checker → · Palette generator →