#4591DF#4591DF

#4591DF is a light, vivid cyan. Relative luminance 0.268; OKLCH L 64.5% C 0.139 H 251.4°. Best body text is #000000 at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#4591DF
RGB	rgb(69, 145, 223)
HSL	hsl(210, 71%, 57%)
HSV	hsv(210, 69%, 87%)
CMYK	cmyk(69.1%, 35%, 0%, 12.5%)
CIE-LAB	lab(58.83, 1.60, -46.52)
CIE-LCH	lch(58.83, 46.55, 271.97°)
OKLab	oklab(64.46% -0.0445 -0.1321)
OKLCH	oklch(64.46% 0.139 251.4)
XYZ	xyz(25.8940, 26.8410, 73.6139)
Luminance	0.2684 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4591DF #DF9345

analogous

#45DEDF #4591DF #4645DF

triadic

#4591DF #DF4591 #91DF45

tetradic

#4591DF #DF45DE #DF9345 #45DF46

square

#4591DF #DF45DE #DF9345 #45DF46

split-complementary

#4591DF #DF4645 #DEDF45

monochromatic

#195491 #2272C5 #4591DF #79B0E8 #ADCFF1

Accessibility & contrast

On white

3.30

#4591DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.37

#4591DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4591DF

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4591DF	#FFFFFF	#000000	##000000
##4591DF	1.00	3.30	6.37	6.37
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.37	21.00	1.00	1.00
##000000	6.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E95E2

Deuteranopia (green-blind)

#5887DD

Tritanopia (blue-blind)

#00A3AD

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #4591df;
/* rgb */ color: rgb(69, 145, 223);
/* oklch */ color: oklch(64.5% 0.139 251.4);

Tailwind

colors: {
  custom: {
    50: '#89b0e9',
    500: '#4591df',
    950: '#000000',
  },
}

SCSS

$custom: #4591df;
$custom-light: #89b0e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4591df",
  "rgb": {
    "r": 69,
    "g": 145,
    "b": 223
  },
  "hsl": {
    "h": 210.39,
    "s": 70.642,
    "l": 57.255
  },
  "oklch": {
    "l": 0.64464,
    "c": 0.13943,
    "h": 251.4
  },
  "luminance": 0.26844
}

Semantic roles & 50–950 ramp

primary

#4591DF

secondary

#DFC0A1

accent

#953AED

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4591DF

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

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