#4291D3#4291D3

#4291D3 is a light, vivid cyan. Relative luminance 0.261; OKLCH L 63.7% C 0.126 H 246.7°. Best body text is #000000 at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#4291D3
RGB	rgb(66, 145, 211)
HSL	hsl(207, 62%, 54%)
HSV	hsv(207, 69%, 83%)
CMYK	cmyk(68.7%, 31.3%, 0%, 17.3%)
CIE-LAB	lab(58.14, -2.99, -40.90)
CIE-LCH	lch(58.14, 41.01, 265.81°)
OKLab	oklab(63.71% -0.0498 -0.1158)
OKLCH	oklch(63.71% 0.126 246.7)
XYZ	xyz(24.1256, 26.1096, 65.3836)
Luminance	0.2611 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4291D3 #D38442

analogous

#42D3CC #4291D3 #4249D3

triadic

#4291D3 #D34291 #91D342

tetradic

#4291D3 #CC42D3 #D38442 #49D342

square

#4291D3 #CC42D3 #D38442 #49D342

split-complementary

#4291D3 #D34249 #D3CC42

monochromatic

#1D527D #2972AF #4291D3 #74AEDF #A5CBEA

Accessibility & contrast

On white

3.37

#4291D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.22

#4291D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4291D3

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4291D3	#FFFFFF	#000000	##000000
##4291D3	1.00	3.37	6.22	6.22
#FFFFFF	3.37	1.00	21.00	21.00
#000000	6.22	21.00	1.00	1.00
##000000	6.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7393D6

Deuteranopia (green-blind)

#5F86D2

Tritanopia (blue-blind)

#00A1A8

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #4291d3;
/* rgb */ color: rgb(66, 145, 211);
/* oklch */ color: oklch(63.7% 0.126 246.7);

Tailwind

colors: {
  custom: {
    50: '#86b1e1',
    500: '#4291d3',
    950: '#000000',
  },
}

SCSS

$custom: #4291d3;
$custom-light: #86b1e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4291d3",
  "rgb": {
    "r": 66,
    "g": 145,
    "b": 211
  },
  "hsl": {
    "h": 207.31,
    "s": 62.232,
    "l": 54.314
  },
  "oklch": {
    "l": 0.63705,
    "c": 0.12602,
    "h": 246.7
  },
  "luminance": 0.26112
}

Semantic roles & 50–950 ramp

primary

#4291D3

secondary

#D7B69A

accent

#8D42E5

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4291D3

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

Preview Lab → · Contrast checker → · Palette generator →