#4277BB#4277BB

#4277BB is a mid, vivid cyan. Relative luminance 0.179; OKLCH L 56.5% C 0.120 H 255.5°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#4277BB
RGB	rgb(66, 119, 187)
HSL	hsl(214, 48%, 50%)
HSV	hsv(214, 65%, 73%)
CMYK	cmyk(64.7%, 36.4%, 0%, 26.7%)
CIE-LAB	lab(49.42, 4.13, -41.02)
CIE-LCH	lch(49.42, 41.23, 275.75°)
OKLab	oklab(56.48% -0.0301 -0.1164)
OKLCH	oklch(56.48% 0.12 255.5)
XYZ	xyz(17.8100, 17.9380, 49.5279)
Luminance	0.1794 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4277BB #BB8642

analogous

#42B4BB #4277BB #4A42BB

triadic

#4277BB #BB4277 #77BB42

tetradic

#4277BB #BB42B4 #BB8642 #42BB4A

square

#4277BB #BB42B4 #BB8642 #42BB4A

split-complementary

#4277BB #BB4A42 #B4BB42

monochromatic

#223D61 #325A8E #4277BB #6E97CC #9CB8DC

Accessibility & contrast

On white

4.58

#4277BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#4277BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4277BB

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4277BB	#FFFFFF	#000000	##000000
##4277BB	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#597CBE

Deuteranopia (green-blind)

#4870BA

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4277bb;
/* rgb */ color: rgb(66, 119, 187);
/* oklch */ color: oklch(56.5% 0.120 255.5);

Tailwind

colors: {
  custom: {
    50: '#829dd0',
    500: '#4277bb',
    950: '#000000',
  },
}

SCSS

$custom: #4277bb;
$custom-light: #829dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4277bb",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 187
  },
  "hsl": {
    "h": 213.719,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.56477,
    "c": 0.12024,
    "h": 255.5
  },
  "luminance": 0.1794
}

Semantic roles & 50–950 ramp

primary

#4277BB

secondary

#C8B091

accent

#9C50D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #4277BB

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

Preview Lab → · Contrast checker → · Palette generator →