#428EE7#428EE7

#428EE7 is a light, vivid cyan. Relative luminance 0.263; OKLCH L 64.2% C 0.154 H 254.2°. Best body text is #000000 at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#428EE7
RGB	rgb(66, 142, 231)
HSL	hsl(212, 77%, 58%)
HSV	hsv(212, 71%, 91%)
CMYK	cmyk(71.4%, 38.5%, 0%, 9.4%)
CIE-LAB	lab(58.29, 5.75, -51.83)
CIE-LCH	lch(58.29, 52.14, 276.33°)
OKLab	oklab(64.15% -0.0417 -0.1477)
OKLCH	oklch(64.15% 0.154 254.2)
XYZ	xyz(26.3382, 26.2709, 79.2685)
Luminance	0.2627 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428EE7 #E79B42

analogous

#42E0E7 #428EE7 #4842E7

triadic

#428EE7 #E7428E #8EE742

tetradic

#428EE7 #E742E0 #E79B42 #42E748

square

#428EE7 #E742E0 #E79B42 #42E748

split-complementary

#428EE7 #E74842 #E0E742

monochromatic

#14529B #1B6FD1 #428EE7 #78AEEE #AFCFF5

Accessibility & contrast

On white

3.36

#428EE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.25

#428EE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428EE7

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428EE7	#FFFFFF	#000000	##000000
##428EE7	1.00	3.36	6.25	6.25
#FFFFFF	3.36	1.00	21.00	21.00
#000000	6.25	21.00	1.00	1.00
##000000	6.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6594EB

Deuteranopia (green-blind)

#4B85E5

Tritanopia (blue-blind)

#00A3AF

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #428ee7;
/* rgb */ color: rgb(66, 142, 231);
/* oklch */ color: oklch(64.2% 0.154 254.2);

Tailwind

colors: {
  custom: {
    50: '#8aaeef',
    500: '#428ee7',
    950: '#000000',
  },
}

SCSS

$custom: #428ee7;
$custom-light: #8aaeef;
$custom-dark: #000000;

JSON

{
  "hex": "#428ee7",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 231
  },
  "hsl": {
    "h": 212.364,
    "s": 77.465,
    "l": 58.235
  },
  "oklch": {
    "l": 0.64154,
    "c": 0.15352,
    "h": 254.2
  },
  "luminance": 0.26274
}

Semantic roles & 50–950 ramp

primary

#428EE7

secondary

#E3C5A2

accent

#9B34F4

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #428EE7

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

Preview Lab → · Contrast checker → · Palette generator →