#4291D5#4291D5

#4291D5 is a light, vivid cyan. Relative luminance 0.262; OKLCH L 63.8% C 0.128 H 247.5°. Best body text is #000000 at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#4291D5
RGB	rgb(66, 145, 213)
HSL	hsl(208, 64%, 55%)
HSV	hsv(208, 69%, 84%)
CMYK	cmyk(69%, 31.9%, 0%, 16.5%)
CIE-LAB	lab(58.24, -2.30, -41.87)
CIE-LCH	lch(58.24, 41.94, 266.85°)
OKLab	oklab(63.81% -0.0492 -0.1186)
OKLCH	oklch(63.81% 0.128 247.5)
XYZ	xyz(24.3779, 26.2105, 66.7123)
Luminance	0.2621 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4291D5 #D58642

analogous

#42D5CF #4291D5 #4248D5

triadic

#4291D5 #D54291 #91D542

tetradic

#4291D5 #CF42D5 #D58642 #48D542

square

#4291D5 #CF42D5 #D58642 #48D542

split-complementary

#4291D5 #D54248 #D5CF42

monochromatic

#1C5280 #2872B2 #4291D5 #74AEE0 #A6CBEB

Accessibility & contrast

On white

3.36

#4291D5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.24

#4291D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4291D5

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4291D5	#FFFFFF	#000000	##000000
##4291D5	1.00	3.36	6.24	6.24
#FFFFFF	3.36	1.00	21.00	21.00
#000000	6.24	21.00	1.00	1.00
##000000	6.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7394D8

Deuteranopia (green-blind)

#5E86D4

Tritanopia (blue-blind)

#00A1A9

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #4291d5;
/* rgb */ color: rgb(66, 145, 213);
/* oklch */ color: oklch(63.8% 0.128 247.5);

Tailwind

colors: {
  custom: {
    50: '#87b0e2',
    500: '#4291d5',
    950: '#000000',
  },
}

SCSS

$custom: #4291d5;
$custom-light: #87b0e2;
$custom-dark: #000000;

JSON

{
  "hex": "#4291d5",
  "rgb": {
    "r": 66,
    "g": 145,
    "b": 213
  },
  "hsl": {
    "h": 207.755,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.63812,
    "c": 0.1284,
    "h": 247.5
  },
  "luminance": 0.26213
}

Semantic roles & 50–950 ramp

primary

#4291D5

secondary

#D8B79A

accent

#8E41E7

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4291D5

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

Preview Lab → · Contrast checker → · Palette generator →