#4279B9#4279B9

#4279B9 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.8% C 0.116 H 253.6°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#4279B9
RGB	rgb(66, 121, 185)
HSL	hsl(212, 47%, 49%)
HSV	hsv(212, 64%, 73%)
CMYK	cmyk(64.3%, 34.6%, 0%, 27.5%)
CIE-LAB	lab(49.90, 2.22, -39.11)
CIE-LCH	lch(49.90, 39.17, 273.25°)
OKLab	oklab(56.82% -0.0327 -0.1108)
OKLCH	oklch(56.82% 0.116 253.6)
XYZ	xyz(17.8379, 18.3340, 48.4883)
Luminance	0.1834 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4279B9 #B98242

analogous

#42B5B9 #4279B9 #4742B9

triadic

#4279B9 #B94279 #79B942

tetradic

#4279B9 #B942B5 #B98242 #42B947

square

#4279B9 #B942B5 #B98242 #42B947

split-complementary

#4279B9 #B94742 #B5B942

monochromatic

#223E5F #325B8C #4279B9 #6D99CB #9AB8DB

Accessibility & contrast

On white

4.50

#4279B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#4279B9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4279B9

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4279B9	#FFFFFF	#000000	##000000
##4279B9	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7DBC

Deuteranopia (green-blind)

#4D72B8

Tritanopia (blue-blind)

#008890

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4279b9;
/* rgb */ color: rgb(66, 121, 185);
/* oklch */ color: oklch(56.8% 0.116 253.6);

Tailwind

colors: {
  custom: {
    50: '#829fce',
    500: '#4279b9',
    950: '#000000',
  },
}

SCSS

$custom: #4279b9;
$custom-light: #829fce;
$custom-dark: #000000;

JSON

{
  "hex": "#4279b9",
  "rgb": {
    "r": 66,
    "g": 121,
    "b": 185
  },
  "hsl": {
    "h": 212.269,
    "s": 47.41,
    "l": 49.216
  },
  "oklch": {
    "l": 0.56817,
    "c": 0.11554,
    "h": 253.6
  },
  "luminance": 0.18336
}

Semantic roles & 50–950 ramp

primary

#4279B9

secondary

#C7AD90

accent

#9951D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4279B9

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

Preview Lab → · Contrast checker → · Palette generator →