#4290B2#4290B2

#4290B2 is a mid, moderate cyan. Relative luminance 0.243; OKLCH L 61.9% C 0.092 H 229.4°. Best body text is #000000 at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#4290B2
RGB	rgb(66, 144, 178)
HSL	hsl(198, 46%, 48%)
HSV	hsv(198, 63%, 70%)
CMYK	cmyk(62.9%, 19.1%, 0%, 30.2%)
CIE-LAB	lab(56.40, -13.44, -24.95)
CIE-LCH	lch(56.40, 28.34, 241.68°)
OKLab	oklab(61.85% -0.0597 -0.0697)
OKLCH	oklch(61.85% 0.092 229.4)
XYZ	xyz(20.2528, 24.3171, 45.7372)
Luminance	0.2432 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4290B2 #B26442

analogous

#42B29C #4290B2 #4258B2

triadic

#4290B2 #B24290 #90B242

tetradic

#4290B2 #9C42B2 #B26442 #58B242

square

#4290B2 #9C42B2 #B26442 #58B242

split-complementary

#4290B2 #B24258 #B29C42

monochromatic

#214859 #316C85 #4290B2 #6AABC8 #96C4D8

Accessibility & contrast

On white

3.58

#4290B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.86

#4290B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290B2

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4290B2	#FFFFFF	#000000	##000000
##4290B2	1.00	3.58	5.86	5.86
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.86	21.00	1.00	1.00
##000000	5.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8EB4

Deuteranopia (green-blind)

#6F82B2

Tritanopia (blue-blind)

#009A9B

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #4290b2;
/* rgb */ color: rgb(66, 144, 178);
/* oklch */ color: oklch(61.9% 0.092 229.4);

Tailwind

colors: {
  custom: {
    50: '#82b0c9',
    500: '#4290b2',
    950: '#000000',
  },
}

SCSS

$custom: #4290b2;
$custom-light: #82b0c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4290b2",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 178
  },
  "hsl": {
    "h": 198.214,
    "s": 45.902,
    "l": 47.843
  },
  "oklch": {
    "l": 0.61854,
    "c": 0.09178,
    "h": 229.4
  },
  "luminance": 0.24319
}

Semantic roles & 50–950 ramp

primary

#4290B2

secondary

#C49D8C

accent

#7A52D6

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #4290B2

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

Preview Lab → · Contrast checker → · Palette generator →