#4091FF#4091FF

#4091FF is a light, vivid cyan. Relative luminance 0.286; OKLCH L 66.2% C 0.181 H 257.1°. Best body text is #000000 at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#4091FF
RGB	rgb(64, 145, 255)
HSL	hsl(215, 100%, 63%)
HSV	hsv(215, 75%, 100%)
CMYK	cmyk(74.9%, 43.1%, 0%, 0%)
CIE-LAB	lab(60.39, 12.24, -61.73)
CIE-LCH	lch(60.39, 62.93, 281.21°)
OKLab	oklab(66.2% -0.0406 -0.1768)
OKLCH	oklch(66.2% 0.181 257.1)
XYZ	xyz(30.2831, 28.5573, 98.5044)
Luminance	0.2856 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4091FF #FFAE40

analogous

#40F0FF #4091FF #4E40FF

triadic

#4091FF #FF4091 #91FF40

tetradic

#4091FF #FF40F0 #FFAE40 #40FF4E

square

#4091FF #FF40F0 #FFAE40 #40FF4E

split-complementary

#4091FF #FF4E40 #F0FF40

monochromatic

#0053C5 #036EFF #4091FF #7DB4FF #BAD7FF

Accessibility & contrast

On white

3.13

#4091FF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.71

#4091FF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4091FF

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4091FF	#FFFFFF	#000000	##000000
##4091FF	1.00	3.13	6.71	6.71
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.71	21.00	1.00	1.00
##000000	6.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#599BFF

Deuteranopia (green-blind)

#348AFD

Tritanopia (blue-blind)

#00ABBB

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #4091ff;
/* rgb */ color: rgb(64, 145, 255);
/* oklch */ color: oklch(66.2% 0.181 257.1);

Tailwind

colors: {
  custom: {
    50: '#8db0ff',
    500: '#4091ff',
    950: '#000000',
  },
}

SCSS

$custom: #4091ff;
$custom-light: #8db0ff;
$custom-dark: #000000;

JSON

{
  "hex": "#4091ff",
  "rgb": {
    "r": 64,
    "g": 145,
    "b": 255
  },
  "hsl": {
    "h": 214.555,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.66195,
    "c": 0.18138,
    "h": 257.1
  },
  "luminance": 0.28561
}

Semantic roles & 50–950 ramp

primary

#4091FF

secondary

#F0D3AB

accent

#8400E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1018

muted

#7E7F86

Preview Lab

Preview with #4091FF

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

Preview Lab → · Contrast checker → · Palette generator →