#4290D0#4290D0

#4290D0 is a light, vivid cyan. Relative luminance 0.257; OKLCH L 63.3% C 0.123 H 246.2°. Best body text is #000000 at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#4290D0
RGB	rgb(66, 144, 208)
HSL	hsl(207, 60%, 54%)
HSV	hsv(207, 68%, 82%)
CMYK	cmyk(68.3%, 30.8%, 0%, 18.4%)
CIE-LAB	lab(57.71, -3.44, -39.90)
CIE-LCH	lch(57.71, 40.05, 265.07°)
OKLab	oklab(63.32% -0.0497 -0.1128)
OKLCH	oklch(63.32% 0.123 246.2)
XYZ	xyz(23.6009, 25.6563, 63.3706)
Luminance	0.2566 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4290D0 #D08242

analogous

#42D0C9 #4290D0 #4249D0

triadic

#4290D0 #D04290 #90D042

tetradic

#4290D0 #C942D0 #D08242 #49D042

square

#4290D0 #C942D0 #D08242 #49D042

split-complementary

#4290D0 #D04249 #D0C942

monochromatic

#1E5079 #2A71AA #4290D0 #73ADDC #A4CAE8

Accessibility & contrast

On white

3.42

#4290D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.13

#4290D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290D0

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4290D0	#FFFFFF	#000000	##000000
##4290D0	1.00	3.42	6.13	6.13
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.13	21.00	1.00	1.00
##000000	6.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7392D3

Deuteranopia (green-blind)

#6085CF

Tritanopia (blue-blind)

#009FA7

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4290d0;
/* rgb */ color: rgb(66, 144, 208);
/* oklch */ color: oklch(63.3% 0.123 246.2);

Tailwind

colors: {
  custom: {
    50: '#86b0de',
    500: '#4290d0',
    950: '#000000',
  },
}

SCSS

$custom: #4290d0;
$custom-light: #86b0de;
$custom-dark: #000000;

JSON

{
  "hex": "#4290d0",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 208
  },
  "hsl": {
    "h": 207.042,
    "s": 60.169,
    "l": 53.725
  },
  "oklch": {
    "l": 0.63319,
    "c": 0.1233,
    "h": 246.2
  },
  "luminance": 0.25659
}

Semantic roles & 50–950 ramp

primary

#4290D0

secondary

#D5B499

accent

#8C44E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4290D0

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

Preview Lab → · Contrast checker → · Palette generator →