#4277B3#4277B3

#4277B3 is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 56.0% C 0.110 H 252.9°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#4277B3
RGB	rgb(66, 119, 179)
HSL	hsl(212, 46%, 48%)
HSV	hsv(212, 63%, 70%)
CMYK	cmyk(63.1%, 33.5%, 0%, 29.8%)
CIE-LAB	lab(49.01, 1.36, -37.04)
CIE-LCH	lch(49.01, 37.07, 272.10°)
OKLab	oklab(56.03% -0.0322 -0.1048)
OKLCH	oklch(56.03% 0.11 252.9)
XYZ	xyz(16.9773, 17.6050, 45.1425)
Luminance	0.1761 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4277B3 #B37E42

analogous

#42AFB3 #4277B3 #4542B3

triadic

#4277B3 #B34277 #77B342

tetradic

#4277B3 #B342AF #B37E42 #42B345

square

#4277B3 #B342AF #B37E42 #42B345

split-complementary

#4277B3 #B34542 #AFB342

monochromatic

#213C5A #325986 #4277B3 #6A96C8 #97B6D9

Accessibility & contrast

On white

4.64

#4277B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#4277B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4277B3

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4277B3	#FFFFFF	#000000	##FFFFFF
##4277B3	1.00	4.64	4.52	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7AB6

Deuteranopia (green-blind)

#4E70B2

Tritanopia (blue-blind)

#00858D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4277b3;
/* rgb */ color: rgb(66, 119, 179);
/* oklch */ color: oklch(56.0% 0.110 252.9);

Tailwind

colors: {
  custom: {
    50: '#819dca',
    500: '#4277b3',
    950: '#000000',
  },
}

SCSS

$custom: #4277b3;
$custom-light: #819dca;
$custom-dark: #000000;

JSON

{
  "hex": "#4277b3",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 179
  },
  "hsl": {
    "h": 211.858,
    "s": 46.122,
    "l": 48.039
  },
  "oklch": {
    "l": 0.56025,
    "c": 0.10964,
    "h": 252.9
  },
  "luminance": 0.17607
}

Semantic roles & 50–950 ramp

primary

#4277B3

secondary

#C4AA8C

accent

#9852D6

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4277B3

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

Preview Lab → · Contrast checker → · Palette generator →