#4291CE#4291CE

#4291CE is a light, vivid cyan. Relative luminance 0.259; OKLCH L 63.4% C 0.120 H 244.7°. Best body text is #000000 at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#4291CE
RGB	rgb(66, 145, 206)
HSL	hsl(206, 59%, 53%)
HSV	hsv(206, 68%, 81%)
CMYK	cmyk(68%, 29.6%, 0%, 19.2%)
CIE-LAB	lab(57.91, -4.71, -38.46)
CIE-LCH	lch(57.91, 38.75, 263.03°)
OKLab	oklab(63.44% -0.0513 -0.1087)
OKLCH	oklch(63.44% 0.12 244.7)
XYZ	xyz(23.5085, 25.8628, 62.1336)
Luminance	0.2586 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4291CE #CE7F42

analogous

#42CEC5 #4291CE #424BCE

triadic

#4291CE #CE4291 #91CE42

tetradic

#4291CE #C542CE #CE7F42 #4BCE42

square

#4291CE #C542CE #CE7F42 #4BCE42

split-complementary

#4291CE #CE424B #CEC542

monochromatic

#1F5077 #2B71A7 #4291CE #73ADDB #A3CAE7

Accessibility & contrast

On white

3.40

#4291CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.17

#4291CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4291CE

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4291CE	#FFFFFF	#000000	##000000
##4291CE	1.00	3.40	6.17	6.17
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.17	21.00	1.00	1.00
##000000	6.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7693D1

Deuteranopia (green-blind)

#6285CD

Tritanopia (blue-blind)

#00A0A6

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4291ce;
/* rgb */ color: rgb(66, 145, 206);
/* oklch */ color: oklch(63.4% 0.120 244.7);

Tailwind

colors: {
  custom: {
    50: '#85b1dd',
    500: '#4291ce',
    950: '#000000',
  },
}

SCSS

$custom: #4291ce;
$custom-light: #85b1dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4291ce",
  "rgb": {
    "r": 66,
    "g": 145,
    "b": 206
  },
  "hsl": {
    "h": 206.143,
    "s": 58.824,
    "l": 53.333
  },
  "oklch": {
    "l": 0.63443,
    "c": 0.12016,
    "h": 244.7
  },
  "luminance": 0.25865
}

Semantic roles & 50–950 ramp

primary

#4291CE

secondary

#D4B298

accent

#8A46E2

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4291CE

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

Preview Lab → · Contrast checker → · Palette generator →