#4291DA#4291DA

#4291DA is a light, vivid cyan. Relative luminance 0.265; OKLCH L 64.1% C 0.134 H 249.2°. Best body text is #000000 at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#4291DA
RGB	rgb(66, 145, 218)
HSL	hsl(209, 67%, 56%)
HSV	hsv(209, 70%, 85%)
CMYK	cmyk(69.7%, 33.5%, 0%, 14.5%)
CIE-LAB	lab(58.48, -0.58, -44.29)
CIE-LCH	lch(58.48, 44.29, 269.26°)
OKLab	oklab(64.08% -0.0478 -0.1256)
OKLCH	oklch(64.08% 0.134 249.2)
XYZ	xyz(25.0223, 26.4683, 70.1062)
Luminance	0.2647 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4291DA #DA8B42

analogous

#42DAD7 #4291DA #4245DA

triadic

#4291DA #DA4291 #91DA42

tetradic

#4291DA #D742DA #DA8B42 #45DA42

square

#4291DA #D742DA #DA8B42 #45DA42

split-complementary

#4291DA #DA4245 #DAD742

monochromatic

#1A5387 #2472BA #4291DA #75AFE4 #A8CDEE

Accessibility & contrast

On white

3.34

#4291DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.29

#4291DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4291DA

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4291DA	#FFFFFF	#000000	##000000
##4291DA	1.00	3.34	6.29	6.29
#FFFFFF	3.34	1.00	21.00	21.00
#000000	6.29	21.00	1.00	1.00
##000000	6.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7095DD

Deuteranopia (green-blind)

#5B86D9

Tritanopia (blue-blind)

#00A2AB

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #4291da;
/* rgb */ color: rgb(66, 145, 218);
/* oklch */ color: oklch(64.1% 0.134 249.2);

Tailwind

colors: {
  custom: {
    50: '#87b0e6',
    500: '#4291da',
    950: '#000000',
  },
}

SCSS

$custom: #4291da;
$custom-light: #87b0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4291da",
  "rgb": {
    "r": 66,
    "g": 145,
    "b": 218
  },
  "hsl": {
    "h": 208.816,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.64082,
    "c": 0.13443,
    "h": 249.2
  },
  "luminance": 0.26471
}

Semantic roles & 50–950 ramp

primary

#4291DA

secondary

#DBBB9C

accent

#903EEA

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4291DA

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

Preview Lab → · Contrast checker → · Palette generator →