#4290D2#4290D2

#4290D2 is a light, vivid cyan. Relative luminance 0.258; OKLCH L 63.4% C 0.126 H 247.0°. Best body text is #000000 at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#4290D2
RGB	rgb(66, 144, 210)
HSL	hsl(208, 62%, 54%)
HSV	hsv(208, 69%, 82%)
CMYK	cmyk(68.6%, 31.4%, 0%, 17.6%)
CIE-LAB	lab(57.80, -2.76, -40.87)
CIE-LCH	lch(57.80, 40.97, 266.14°)
OKLab	oklab(63.42% -0.0491 -0.1157)
OKLCH	oklch(63.42% 0.126 247)
XYZ	xyz(23.8485, 25.7554, 64.6747)
Luminance	0.2576 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4290D2 #D28442

analogous

#42D2CC #4290D2 #4248D2

triadic

#4290D2 #D24290 #90D242

tetradic

#4290D2 #CC42D2 #D28442 #48D242

square

#4290D2 #CC42D2 #D28442 #48D242

split-complementary

#4290D2 #D24248 #D2CC42

monochromatic

#1E517C #2971AD #4290D2 #73ADDE #A5CAEA

Accessibility & contrast

On white

3.41

#4290D2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.15

#4290D2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290D2

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4290D2	#FFFFFF	#000000	##000000
##4290D2	1.00	3.41	6.15	6.15
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.15	21.00	1.00	1.00
##000000	6.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7292D5

Deuteranopia (green-blind)

#5E85D1

Tritanopia (blue-blind)

#00A0A7

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4290d2;
/* rgb */ color: rgb(66, 144, 210);
/* oklch */ color: oklch(63.4% 0.126 247.0);

Tailwind

colors: {
  custom: {
    50: '#86b0e0',
    500: '#4290d2',
    950: '#000000',
  },
}

SCSS

$custom: #4290d2;
$custom-light: #86b0e0;
$custom-dark: #000000;

JSON

{
  "hex": "#4290d2",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 210
  },
  "hsl": {
    "h": 207.5,
    "s": 61.538,
    "l": 54.118
  },
  "oklch": {
    "l": 0.63424,
    "c": 0.12567,
    "h": 247
  },
  "luminance": 0.25758
}

Semantic roles & 50–950 ramp

primary

#4290D2

secondary

#D7B599

accent

#8D43E5

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4290D2

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

Preview Lab → · Contrast checker → · Palette generator →