#4290BF#4290BF

#4290BF is a light, moderate cyan. Relative luminance 0.249; OKLCH L 62.5% C 0.104 H 238.1°. Best body text is #000000 at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#4290BF
RGB	rgb(66, 144, 191)
HSL	hsl(203, 49%, 50%)
HSV	hsv(203, 65%, 75%)
CMYK	cmyk(65.4%, 24.6%, 0%, 25.1%)
CIE-LAB	lab(56.94, -9.19, -31.50)
CIE-LCH	lch(56.94, 32.82, 253.74°)
OKLab	oklab(62.46% -0.0551 -0.0885)
OKLCH	oklch(62.46% 0.104 238.1)
XYZ	xyz(21.6204, 24.8641, 52.9400)
Luminance	0.2487 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4290BF #BF7142

analogous

#42BFAF #4290BF #4251BF

triadic

#4290BF #BF4290 #90BF42

tetradic

#4290BF #AF42BF #BF7142 #51BF42

square

#4290BF #AF42BF #BF7142 #51BF42

split-complementary

#4290BF #BF4251 #BFAF42

monochromatic

#224C65 #326E92 #4290BF #70ABCE #9DC6DE

Accessibility & contrast

On white

3.52

#4290BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.97

#4290BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290BF

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4290BF	#FFFFFF	#000000	##000000
##4290BF	1.00	3.52	5.97	5.97
#FFFFFF	3.52	1.00	21.00	21.00
#000000	5.97	21.00	1.00	1.00
##000000	5.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A90C1

Deuteranopia (green-blind)

#6983BE

Tritanopia (blue-blind)

#009CA0

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4290bf;
/* rgb */ color: rgb(66, 144, 191);
/* oklch */ color: oklch(62.5% 0.104 238.1);

Tailwind

colors: {
  custom: {
    50: '#83b0d2',
    500: '#4290bf',
    950: '#000000',
  },
}

SCSS

$custom: #4290bf;
$custom-light: #83b0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4290bf",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 191
  },
  "hsl": {
    "h": 202.56,
    "s": 49.407,
    "l": 50.392
  },
  "oklch": {
    "l": 0.6246,
    "c": 0.10426,
    "h": 238.1
  },
  "luminance": 0.24866
}

Semantic roles & 50–950 ramp

primary

#4290BF

secondary

#CAA793

accent

#834FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4290BF

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

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