#4F90BC#4F90BC

#4F90BC is a light, moderate cyan. Relative luminance 0.252; OKLCH L 62.8% C 0.094 H 240.2°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#4F90BC
RGB	rgb(79, 144, 188)
HSL	hsl(204, 45%, 52%)
HSV	hsv(204, 58%, 74%)
CMYK	cmyk(58%, 23.4%, 0%, 26.3%)
CIE-LAB	lab(57.31, -7.72, -29.20)
CIE-LCH	lch(57.31, 30.20, 255.19°)
OKLab	oklab(62.84% -0.0469 -0.0817)
OKLCH	oklch(62.84% 0.094 240.2)
XYZ	xyz(22.2714, 25.2376, 51.2649)
Luminance	0.2524 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F90BC #BC7B4F

analogous

#4FBCB1 #4F90BC #4F5ABC

triadic

#4F90BC #BC4F90 #90BC4F

tetradic

#4F90BC #B14FBC #BC7B4F #5ABC4F

square

#4F90BC #B14FBC #BC7B4F #5ABC4F

split-complementary

#4F90BC #BC4F5A #BCB14F

monochromatic

#284F69 #397095 #4F90BC #7BACCD #A8C8DE

Accessibility & contrast

On white

3.47

#4F90BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#4F90BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F90BC

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F90BC	#FFFFFF	#000000	##000000
##4F90BC	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C90BE

Deuteranopia (green-blind)

#6D85BB

Tritanopia (blue-blind)

#009B9F

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #4f90bc;
/* rgb */ color: rgb(79, 144, 188);
/* oklch */ color: oklch(62.8% 0.094 240.2);

Tailwind

colors: {
  custom: {
    50: '#89b0d0',
    500: '#4f90bc',
    950: '#000000',
  },
}

SCSS

$custom: #4f90bc;
$custom-light: #89b0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f90bc",
  "rgb": {
    "r": 79,
    "g": 144,
    "b": 188
  },
  "hsl": {
    "h": 204.22,
    "s": 44.856,
    "l": 52.353
  },
  "oklch": {
    "l": 0.62842,
    "c": 0.09424,
    "h": 240.2
  },
  "luminance": 0.2524
}

Semantic roles & 50–950 ramp

primary

#4F90BC

secondary

#CBAF9C

accent

#8753D5

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4F90BC

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

Preview Lab → · Contrast checker → · Palette generator →