#4290AF#4290AF

#4290AF is a mid, moderate cyan. Relative luminance 0.242; OKLCH L 61.7% C 0.089 H 227.1°. Best body text is #000000 at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#4290AF
RGB	rgb(66, 144, 175)
HSL	hsl(197, 45%, 47%)
HSV	hsv(197, 62%, 69%)
CMYK	cmyk(62.3%, 17.7%, 0%, 31.4%)
CIE-LAB	lab(56.29, -14.40, -23.42)
CIE-LCH	lch(56.29, 27.50, 238.41°)
OKLab	oklab(61.72% -0.0608 -0.0653)
OKLCH	oklch(61.72% 0.089 227.1)
XYZ	xyz(19.9549, 24.1979, 44.1682)
Luminance	0.2420 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4290AF #AF6142

analogous

#42AF97 #4290AF #425AAF

triadic

#4290AF #AF4290 #90AF42

tetradic

#4290AF #9742AF #AF6142 #5AAF42

square

#4290AF #9742AF #AF6142 #5AAF42

split-complementary

#4290AF #AF425A #AF9742

monochromatic

#204756 #316B83 #4290AF #68ABC6 #95C4D7

Accessibility & contrast

On white

3.60

#4290AF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.84

#4290AF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290AF

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4290AF	#FFFFFF	#000000	##000000
##4290AF	1.00	3.60	5.84	5.84
#FFFFFF	3.60	1.00	21.00	21.00
#000000	5.84	21.00	1.00	1.00
##000000	5.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8DB1

Deuteranopia (green-blind)

#7082AF

Tritanopia (blue-blind)

#00999A

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #4290af;
/* rgb */ color: rgb(66, 144, 175);
/* oklch */ color: oklch(61.7% 0.089 227.1);

Tailwind

colors: {
  custom: {
    50: '#81b0c7',
    500: '#4290af',
    950: '#000000',
  },
}

SCSS

$custom: #4290af;
$custom-light: #81b0c7;
$custom-dark: #000000;

JSON

{
  "hex": "#4290af",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 175
  },
  "hsl": {
    "h": 197.064,
    "s": 45.228,
    "l": 47.255
  },
  "oklch": {
    "l": 0.6172,
    "c": 0.08928,
    "h": 227.1
  },
  "luminance": 0.242
}

Semantic roles & 50–950 ramp

primary

#4290AF

secondary

#C29A8A

accent

#7853D5

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #4290AF

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

Preview Lab → · Contrast checker → · Palette generator →