#4B99CB#4B99CB

#4B99CB is a light, moderate cyan. Relative luminance 0.286; OKLCH L 65.5% C 0.107 H 239.4°. Best body text is #000000 at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#4B99CB
RGB	rgb(75, 153, 203)
HSL	hsl(203, 55%, 55%)
HSV	hsv(203, 63%, 80%)
CMYK	cmyk(63.1%, 24.6%, 0%, 20.4%)
CIE-LAB	lab(60.42, -8.73, -32.84)
CIE-LCH	lch(60.42, 33.98, 255.12°)
OKLab	oklab(65.47% -0.0545 -0.0922)
OKLCH	oklch(65.47% 0.107 239.4)
XYZ	xyz(25.0683, 28.5876, 60.6852)
Luminance	0.2859 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B99CB #CB7D4B

analogous

#4BCBBD #4B99CB #4B59CB

triadic

#4B99CB #CB4B99 #99CB4B

tetradic

#4B99CB #BD4BCB #CB7D4B #59CB4B

square

#4B99CB #BD4BCB #CB7D4B #59CB4B

split-complementary

#4B99CB #CB4B59 #CBBD4B

monochromatic

#235779 #3179A8 #4B99CB #7AB4D9 #AACFE6

Accessibility & contrast

On white

3.13

#4B99CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.72

#4B99CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B99CB

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B99CB	#FFFFFF	#000000	##000000
##4B99CB	1.00	3.13	6.72	6.72
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.72	21.00	1.00	1.00
##000000	6.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8299CD

Deuteranopia (green-blind)

#718CCA

Tritanopia (blue-blind)

#00A6AA

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #4b99cb;
/* rgb */ color: rgb(75, 153, 203);
/* oklch */ color: oklch(65.5% 0.107 239.4);

Tailwind

colors: {
  custom: {
    50: '#89b7db',
    500: '#4b99cb',
    950: '#000000',
  },
}

SCSS

$custom: #4b99cb;
$custom-light: #89b7db;
$custom-dark: #000000;

JSON

{
  "hex": "#4b99cb",
  "rgb": {
    "r": 75,
    "g": 153,
    "b": 203
  },
  "hsl": {
    "h": 203.438,
    "s": 55.172,
    "l": 54.51
  },
  "oklch": {
    "l": 0.65471,
    "c": 0.10713,
    "h": 239.4
  },
  "luminance": 0.2859
}

Semantic roles & 50–950 ramp

primary

#4B99CB

secondary

#D4B39E

accent

#8449DF

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0D1115

muted

#7D8083

Preview Lab

Preview with #4B99CB

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

Preview Lab → · Contrast checker → · Palette generator →