#4290CD#4290CD

#4290CD is a light, moderate cyan. Relative luminance 0.255; OKLCH L 63.2% C 0.120 H 245.0°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#4290CD
RGB	rgb(66, 144, 205)
HSL	hsl(206, 58%, 53%)
HSV	hsv(206, 68%, 80%)
CMYK	cmyk(67.8%, 29.8%, 0%, 19.6%)
CIE-LAB	lab(57.57, -4.47, -38.43)
CIE-LCH	lch(57.57, 38.69, 263.36°)
OKLab	oklab(63.16% -0.0506 -0.1086)
OKLCH	oklch(63.16% 0.12 245)
XYZ	xyz(23.2353, 25.5101, 61.4452)
Luminance	0.2551 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4290CD #CD7F42

analogous

#42CDC4 #4290CD #424ACD

triadic

#4290CD #CD4290 #90CD42

tetradic

#4290CD #C442CD #CD7F42 #4ACD42

square

#4290CD #C442CD #CD7F42 #4ACD42

split-complementary

#4290CD #CD424A #CDC442

monochromatic

#1F5076 #2C70A6 #4290CD #72ACDA #A3C9E7

Accessibility & contrast

On white

3.44

#4290CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#4290CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290CD

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4290CD	#FFFFFF	#000000	##000000
##4290CD	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7592D0

Deuteranopia (green-blind)

#6284CC

Tritanopia (blue-blind)

#009FA5

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #4290cd;
/* rgb */ color: rgb(66, 144, 205);
/* oklch */ color: oklch(63.2% 0.120 245.0);

Tailwind

colors: {
  custom: {
    50: '#85b0dc',
    500: '#4290cd',
    950: '#000000',
  },
}

SCSS

$custom: #4290cd;
$custom-light: #85b0dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4290cd",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 205
  },
  "hsl": {
    "h": 206.331,
    "s": 58.159,
    "l": 53.137
  },
  "oklch": {
    "l": 0.63162,
    "c": 0.11979,
    "h": 245
  },
  "luminance": 0.25513
}

Semantic roles & 50–950 ramp

primary

#4290CD

secondary

#D3B297

accent

#8A46E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4290CD

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

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