#4F90BF#4F90BF

#4F90BF is a light, moderate cyan. Relative luminance 0.254; OKLCH L 63.0% C 0.098 H 241.9°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#4F90BF
RGB	rgb(79, 144, 191)
HSL	hsl(205, 47%, 53%)
HSV	hsv(205, 59%, 75%)
CMYK	cmyk(58.6%, 24.6%, 0%, 25.1%)
CIE-LAB	lab(57.43, -6.77, -30.70)
CIE-LCH	lch(57.43, 31.44, 257.57°)
OKLab	oklab(62.98% -0.0459 -0.0861)
OKLCH	oklch(62.98% 0.098 241.9)
XYZ	xyz(22.5982, 25.3683, 52.9858)
Luminance	0.2537 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F90BF #BF7E4F

analogous

#4FBFB6 #4F90BF #4F58BF

triadic

#4F90BF #BF4F90 #90BF4F

tetradic

#4F90BF #B64FBF #BF7E4F #58BF4F

square

#4F90BF #B64FBF #BF7E4F #58BF4F

split-complementary

#4F90BF #BF4F58 #BFB64F

monochromatic

#274F6C #387099 #4F90BF #7CACCF #A9C9E0

Accessibility & contrast

On white

3.46

#4F90BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.07

#4F90BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F90BF

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F90BF	#FFFFFF	#000000	##000000
##4F90BF	1.00	3.46	6.07	6.07
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.07	21.00	1.00	1.00
##000000	6.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B90C1

Deuteranopia (green-blind)

#6C85BE

Tritanopia (blue-blind)

#009CA0

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #4f90bf;
/* rgb */ color: rgb(79, 144, 191);
/* oklch */ color: oklch(63.0% 0.098 241.9);

Tailwind

colors: {
  custom: {
    50: '#89b0d2',
    500: '#4f90bf',
    950: '#000000',
  },
}

SCSS

$custom: #4f90bf;
$custom-light: #89b0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4f90bf",
  "rgb": {
    "r": 79,
    "g": 144,
    "b": 191
  },
  "hsl": {
    "h": 205.179,
    "s": 46.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.62984,
    "c": 0.09754,
    "h": 241.9
  },
  "luminance": 0.2537
}

Semantic roles & 50–950 ramp

primary

#4F90BF

secondary

#CDB19D

accent

#8951D6

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4F90BF

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

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