#4088E3#4088E3

#4088E3 is a light, vivid cyan. Relative luminance 0.242; OKLCH L 62.5% C 0.155 H 255.6°. Best body text is #000000 at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#4088E3
RGB	rgb(64, 136, 227)
HSL	hsl(213, 74%, 57%)
HSV	hsv(213, 72%, 89%)
CMYK	cmyk(71.8%, 40.1%, 0%, 11%)
CIE-LAB	lab(56.33, 7.65, -52.73)
CIE-LCH	lch(56.33, 53.28, 278.25°)
OKLab	oklab(62.54% -0.0385 -0.1505)
OKLCH	oklch(62.54% 0.155 255.6)
XYZ	xyz(24.7785, 24.2416, 76.0314)
Luminance	0.2424 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4088E3 #E39B40

analogous

#40D9E3 #4088E3 #4A40E3

triadic

#4088E3 #E34088 #88E340

tetradic

#4088E3 #E340D9 #E39B40 #40E34A

square

#4088E3 #E340D9 #E39B40 #40E34A

split-complementary

#4088E3 #E34A40 #D9E340

monochromatic

#164D93 #1D69C8 #4088E3 #75A9EB #ABCBF3

Accessibility & contrast

On white

3.59

#4088E3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.85

#4088E3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4088E3

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4088E3	#FFFFFF	#000000	##000000
##4088E3	1.00	3.59	5.85	5.85
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.85	21.00	1.00	1.00
##000000	5.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D8FE7

Deuteranopia (green-blind)

#4380E1

Tritanopia (blue-blind)

#009DAA

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #4088e3;
/* rgb */ color: rgb(64, 136, 227);
/* oklch */ color: oklch(62.5% 0.155 255.6);

Tailwind

colors: {
  custom: {
    50: '#88aaec',
    500: '#4088e3',
    950: '#000000',
  },
}

SCSS

$custom: #4088e3;
$custom-light: #88aaec;
$custom-dark: #000000;

JSON

{
  "hex": "#4088e3",
  "rgb": {
    "r": 64,
    "g": 136,
    "b": 227
  },
  "hsl": {
    "h": 213.497,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.62535,
    "c": 0.15536,
    "h": 255.6
  },
  "luminance": 0.24244
}

Semantic roles & 50–950 ramp

primary

#4088E3

secondary

#E1C39E

accent

#9F37F1

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4088E3

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

Preview Lab → · Contrast checker → · Palette generator →