#4291BF#4291BF

#4291BF is a light, moderate cyan. Relative luminance 0.252; OKLCH L 62.7% C 0.104 H 237.2°. Best body text is #000000 at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#4291BF
RGB	rgb(66, 145, 191)
HSL	hsl(202, 49%, 50%)
HSV	hsv(202, 65%, 75%)
CMYK	cmyk(65.4%, 24.1%, 0%, 25.1%)
CIE-LAB	lab(57.24, -9.75, -31.04)
CIE-LCH	lch(57.24, 32.54, 252.56°)
OKLab	oklab(62.7% -0.0561 -0.0872)
OKLCH	oklch(62.7% 0.104 237.2)
XYZ	xyz(21.7725, 25.1684, 52.9907)
Luminance	0.2517 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4291BF #BF7042

analogous

#42BFAE #4291BF #4252BF

triadic

#4291BF #BF4291 #91BF42

tetradic

#4291BF #AE42BF #BF7042 #52BF42

square

#4291BF #AE42BF #BF7042 #52BF42

split-complementary

#4291BF #BF4252 #BFAE42

monochromatic

#224C65 #326F92 #4291BF #70ACCE #9DC6DE

Accessibility & contrast

On white

3.48

#4291BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.03

#4291BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4291BF

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4291BF	#FFFFFF	#000000	##000000
##4291BF	1.00	3.48	6.03	6.03
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.03	21.00	1.00	1.00
##000000	6.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B90C1

Deuteranopia (green-blind)

#6A84BE

Tritanopia (blue-blind)

#009DA1

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4291bf;
/* rgb */ color: rgb(66, 145, 191);
/* oklch */ color: oklch(62.7% 0.104 237.2);

Tailwind

colors: {
  custom: {
    50: '#83b1d2',
    500: '#4291bf',
    950: '#000000',
  },
}

SCSS

$custom: #4291bf;
$custom-light: #83b1d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4291bf",
  "rgb": {
    "r": 66,
    "g": 145,
    "b": 191
  },
  "hsl": {
    "h": 202.08,
    "s": 49.407,
    "l": 50.392
  },
  "oklch": {
    "l": 0.62695,
    "c": 0.10369,
    "h": 237.2
  },
  "luminance": 0.25171
}

Semantic roles & 50–950 ramp

primary

#4291BF

secondary

#CAA793

accent

#824FD9

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4291BF

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

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