#4271CE#4271CE

#4271CE is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.3% C 0.153 H 262.4°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#4271CE
RGB	rgb(66, 113, 206)
HSL	hsl(220, 59%, 53%)
HSV	hsv(220, 68%, 81%)
CMYK	cmyk(68%, 45.1%, 0%, 19.2%)
CIE-LAB	lab(48.79, 14.57, -52.92)
CIE-LCH	lch(48.79, 54.89, 285.39°)
OKLab	oklab(56.33% -0.0202 -0.1514)
OKLCH	oklch(56.33% 0.153 262.4)
XYZ	xyz(19.2885, 17.4228, 60.7270)
Luminance	0.1742 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4271CE #CE9F42

analogous

#42B7CE #4271CE #5942CE

triadic

#4271CE #CE4271 #71CE42

tetradic

#4271CE #CE42B7 #CE9F42 #42CE59

square

#4271CE #CE42B7 #CE9F42 #42CE59

split-complementary

#4271CE #CE5942 #B7CE42

monochromatic

#1F3C77 #2B55A7 #4271CE #7396DB #A3BAE7

Accessibility & contrast

On white

4.68

#4271CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#4271CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4271CE

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4271CE	#FFFFFF	#000000	##FFFFFF
##4271CE	1.00	4.68	4.48	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#437BD2

Deuteranopia (green-blind)

#286ECC

Tritanopia (blue-blind)

#008795

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4271ce;
/* rgb */ color: rgb(66, 113, 206);
/* oklch */ color: oklch(56.3% 0.153 262.4);

Tailwind

colors: {
  custom: {
    50: '#8599dd',
    500: '#4271ce',
    950: '#000000',
  },
}

SCSS

$custom: #4271ce;
$custom-light: #8599dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4271ce",
  "rgb": {
    "r": 66,
    "g": 113,
    "b": 206
  },
  "hsl": {
    "h": 219.857,
    "s": 58.824,
    "l": 53.333
  },
  "oklch": {
    "l": 0.56333,
    "c": 0.15275,
    "h": 262.4
  },
  "luminance": 0.17425
}

Semantic roles & 50–950 ramp

primary

#4271CE

secondary

#D4C098

accent

#AE46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4271CE

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

Preview Lab → · Contrast checker → · Palette generator →