#4290BC#4290BC

#4290BC is a light, moderate cyan. Relative luminance 0.247; OKLCH L 62.3% C 0.101 H 236.3°. Best body text is #000000 at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#4290BC
RGB	rgb(66, 144, 188)
HSL	hsl(202, 48%, 50%)
HSV	hsv(202, 65%, 74%)
CMYK	cmyk(64.9%, 23.4%, 0%, 26.3%)
CIE-LAB	lab(56.81, -10.18, -30.00)
CIE-LCH	lch(56.81, 31.68, 251.25°)
OKLab	oklab(62.32% -0.0561 -0.0842)
OKLCH	oklch(62.32% 0.101 236.3)
XYZ	xyz(21.2936, 24.7334, 51.2190)
Luminance	0.2474 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4290BC #BC6E42

analogous

#42BCAB #4290BC #4253BC

triadic

#4290BC #BC4290 #90BC42

tetradic

#4290BC #AB42BC #BC6E42 #53BC42

square

#4290BC #AB42BC #BC6E42 #53BC42

split-complementary

#4290BC #BC4253 #BCAB42

monochromatic

#224B61 #326D8F #4290BC #6FABCC #9CC5DC

Accessibility & contrast

On white

3.53

#4290BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.95

#4290BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290BC

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4290BC	#FFFFFF	#000000	##000000
##4290BC	1.00	3.53	5.95	5.95
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.95	21.00	1.00	1.00
##000000	5.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8FBE

Deuteranopia (green-blind)

#6A83BB

Tritanopia (blue-blind)

#009B9F

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #4290bc;
/* rgb */ color: rgb(66, 144, 188);
/* oklch */ color: oklch(62.3% 0.101 236.3);

Tailwind

colors: {
  custom: {
    50: '#83b0d0',
    500: '#4290bc',
    950: '#000000',
  },
}

SCSS

$custom: #4290bc;
$custom-light: #83b0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4290bc",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 188
  },
  "hsl": {
    "h": 201.639,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.62316,
    "c": 0.10118,
    "h": 236.3
  },
  "luminance": 0.24736
}

Semantic roles & 50–950 ramp

primary

#4290BC

secondary

#C9A591

accent

#8150D8

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4290BC

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

Preview Lab → · Contrast checker → · Palette generator →