#4F90BB#4F90BB

#4F90BB is a light, moderate cyan. Relative luminance 0.252; OKLCH L 62.8% C 0.093 H 239.5°. Best body text is #000000 at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#4F90BB
RGB	rgb(79, 144, 187)
HSL	hsl(204, 44%, 52%)
HSV	hsv(204, 58%, 73%)
CMYK	cmyk(57.8%, 23%, 0%, 26.7%)
CIE-LAB	lab(57.26, -8.04, -28.70)
CIE-LCH	lch(57.26, 29.80, 254.35°)
OKLab	oklab(62.8% -0.0472 -0.0803)
OKLCH	oklch(62.8% 0.093 239.5)
XYZ	xyz(22.1640, 25.1946, 50.6991)
Luminance	0.2520 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F90BB #BB7A4F

analogous

#4FBBB0 #4F90BB #4F5ABB

triadic

#4F90BB #BB4F90 #90BB4F

tetradic

#4F90BB #B04FBB #BB7A4F #5ABB4F

square

#4F90BB #B04FBB #BB7A4F #5ABB4F

split-complementary

#4F90BB #BB4F5A #BBB04F

monochromatic

#284E68 #397094 #4F90BB #7BACCC #A7C8DD

Accessibility & contrast

On white

3.48

#4F90BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.04

#4F90BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F90BB

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F90BB	#FFFFFF	#000000	##000000
##4F90BB	1.00	3.48	6.04	6.04
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.04	21.00	1.00	1.00
##000000	6.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D90BD

Deuteranopia (green-blind)

#6E85BA

Tritanopia (blue-blind)

#009B9E

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4f90bb;
/* rgb */ color: rgb(79, 144, 187);
/* oklch */ color: oklch(62.8% 0.093 239.5);

Tailwind

colors: {
  custom: {
    50: '#89b0cf',
    500: '#4f90bb',
    950: '#000000',
  },
}

SCSS

$custom: #4f90bb;
$custom-light: #89b0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4f90bb",
  "rgb": {
    "r": 79,
    "g": 144,
    "b": 187
  },
  "hsl": {
    "h": 203.889,
    "s": 44.262,
    "l": 52.157
  },
  "oklch": {
    "l": 0.62796,
    "c": 0.09317,
    "h": 239.5
  },
  "luminance": 0.25197
}

Semantic roles & 50–950 ramp

primary

#4F90BB

secondary

#CAAE9B

accent

#8754D4

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4F90BB

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

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