#4290B9#4290B9

#4290B9 is a light, moderate cyan. Relative luminance 0.246; OKLCH L 62.2% C 0.098 H 234.4°. Best body text is #000000 at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#4290B9
RGB	rgb(66, 144, 185)
HSL	hsl(201, 47%, 49%)
HSV	hsv(201, 64%, 73%)
CMYK	cmyk(64.3%, 22.2%, 0%, 27.5%)
CIE-LAB	lab(56.69, -11.17, -28.49)
CIE-LCH	lch(56.69, 30.60, 248.59°)
OKLab	oklab(62.18% -0.0571 -0.0799)
OKLCH	oklch(62.18% 0.098 234.4)
XYZ	xyz(20.9736, 24.6054, 49.5335)
Luminance	0.2461 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4290B9 #B96B42

analogous

#42B9A7 #4290B9 #4255B9

triadic

#4290B9 #B94290 #90B942

tetradic

#4290B9 #A742B9 #B96B42 #55B942

square

#4290B9 #A742B9 #B96B42 #55B942

split-complementary

#4290B9 #B94255 #B9A742

monochromatic

#224A5F #326D8C #4290B9 #6DABCB #9AC5DB

Accessibility & contrast

On white

3.55

#4290B9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.92

#4290B9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290B9

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4290B9	#FFFFFF	#000000	##000000
##4290B9	1.00	3.55	5.92	5.92
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.92	21.00	1.00	1.00
##000000	5.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8FBB

Deuteranopia (green-blind)

#6C83B8

Tritanopia (blue-blind)

#009B9E

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #4290b9;
/* rgb */ color: rgb(66, 144, 185);
/* oklch */ color: oklch(62.2% 0.098 234.4);

Tailwind

colors: {
  custom: {
    50: '#82b0ce',
    500: '#4290b9',
    950: '#000000',
  },
}

SCSS

$custom: #4290b9;
$custom-light: #82b0ce;
$custom-dark: #000000;

JSON

{
  "hex": "#4290b9",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 185
  },
  "hsl": {
    "h": 200.672,
    "s": 47.41,
    "l": 49.216
  },
  "oklch": {
    "l": 0.62175,
    "c": 0.0982,
    "h": 234.4
  },
  "luminance": 0.24608
}

Semantic roles & 50–950 ramp

primary

#4290B9

secondary

#C7A390

accent

#7F51D7

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #4290B9

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

Preview Lab → · Contrast checker → · Palette generator →