#4E90E3#4E90E3

#4E90E3 is a light, vivid cyan. Relative luminance 0.271; OKLCH L 64.8% C 0.142 H 255.2°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#4E90E3
RGB	rgb(78, 144, 227)
HSL	hsl(213, 73%, 60%)
HSV	hsv(213, 66%, 89%)
CMYK	cmyk(65.6%, 36.6%, 0%, 11%)
CIE-LAB	lab(59.08, 4.98, -48.33)
CIE-LCH	lch(59.08, 48.59, 275.88°)
OKLab	oklab(64.82% -0.0363 -0.1373)
OKLCH	oklch(64.82% 0.142 255.2)
XYZ	xyz(26.9752, 27.1096, 76.4692)
Luminance	0.2711 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E90E3 #E3A14E

analogous

#4EDAE3 #4E90E3 #574EE3

triadic

#4E90E3 #E34E90 #90E34E

tetradic

#4E90E3 #E34EDA #E3A14E #4EE357

square

#4E90E3 #E34EDA #E3A14E #4EE357

split-complementary

#4E90E3 #E3574E #DAE34E

monochromatic

#19549E #2170D3 #4E90E3 #83B1EB #B8D2F4

Accessibility & contrast

On white

3.27

#4E90E3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#4E90E3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E90E3

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E90E3	#FFFFFF	#000000	##000000
##4E90E3	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B96E6

Deuteranopia (green-blind)

#5688E1

Tritanopia (blue-blind)

#00A3AF

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #4e90e3;
/* rgb */ color: rgb(78, 144, 227);
/* oklch */ color: oklch(64.8% 0.142 255.2);

Tailwind

colors: {
  custom: {
    50: '#8eb0ec',
    500: '#4e90e3',
    950: '#000000',
  },
}

SCSS

$custom: #4e90e3;
$custom-light: #8eb0ec;
$custom-dark: #000000;

JSON

{
  "hex": "#4e90e3",
  "rgb": {
    "r": 78,
    "g": 144,
    "b": 227
  },
  "hsl": {
    "h": 213.423,
    "s": 72.683,
    "l": 59.804
  },
  "oklch": {
    "l": 0.64816,
    "c": 0.14203,
    "h": 255.2
  },
  "luminance": 0.27112
}

Semantic roles & 50–950 ramp

primary

#4E90E3

secondary

#E3CAAA

accent

#9E38EF

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4E90E3

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

Preview Lab → · Contrast checker → · Palette generator →