#4277C5#4277C5

#4277C5 is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.1% C 0.134 H 258.0°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#4277C5
RGB	rgb(66, 119, 197)
HSL	hsl(216, 53%, 52%)
HSV	hsv(216, 66%, 77%)
CMYK	cmyk(66.5%, 39.6%, 0%, 22.7%)
CIE-LAB	lab(49.96, 7.64, -45.92)
CIE-LCH	lch(49.96, 46.55, 279.45°)
OKLab	oklab(57.07% -0.0277 -0.1307)
OKLCH	oklch(57.07% 0.134 258)
XYZ	xyz(18.9180, 18.3812, 55.3634)
Luminance	0.1838 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4277C5 #C59042

analogous

#42B9C5 #4277C5 #4F42C5

triadic

#4277C5 #C54277 #77C542

tetradic

#4277C5 #C542B9 #C59042 #42C54F

square

#4277C5 #C542B9 #C59042 #42C54F

split-complementary

#4277C5 #C54F42 #B9C542

monochromatic

#213F6C #2F5B9A #4277C5 #7199D3 #A0BAE2

Accessibility & contrast

On white

4.49

#4277C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#4277C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4277C5

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4277C5	#FFFFFF	#000000	##000000
##4277C5	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#547DC8

Deuteranopia (green-blind)

#4071C3

Tritanopia (blue-blind)

#008994

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4277c5;
/* rgb */ color: rgb(66, 119, 197);
/* oklch */ color: oklch(57.1% 0.134 258.0);

Tailwind

colors: {
  custom: {
    50: '#849dd7',
    500: '#4277c5',
    950: '#000000',
  },
}

SCSS

$custom: #4277c5;
$custom-light: #849dd7;
$custom-dark: #000000;

JSON

{
  "hex": "#4277c5",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 197
  },
  "hsl": {
    "h": 215.725,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.57067,
    "c": 0.13364,
    "h": 258
  },
  "luminance": 0.18383
}

Semantic roles & 50–950 ramp

primary

#4277C5

secondary

#CEB795

accent

#A24BDC

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #4277C5

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

Preview Lab → · Contrast checker → · Palette generator →