#4299BB#4299BB

#4299BB is a light, moderate cyan. Relative luminance 0.275; OKLCH L 64.4% C 0.097 H 227.0°. Best body text is #000000 at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#4299BB
RGB	rgb(66, 153, 187)
HSL	hsl(197, 48%, 50%)
HSV	hsv(197, 65%, 73%)
CMYK	cmyk(64.7%, 18.2%, 0%, 26.7%)
CIE-LAB	lab(59.46, -15.47, -25.35)
CIE-LCH	lch(59.46, 29.70, 238.60°)
OKLab	oklab(64.41% -0.066 -0.0708)
OKLCH	oklch(64.41% 0.097 227)
XYZ	xyz(22.6041, 27.5262, 51.1259)
Luminance	0.2753 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4299BB #BB6442

analogous

#42BBA1 #4299BB #425CBB

triadic

#4299BB #BB4299 #99BB42

tetradic

#4299BB #A142BB #BB6442 #5CBB42

square

#4299BB #A142BB #BB6442 #5CBB42

split-complementary

#4299BB #BB425C #BBA142

monochromatic

#224F61 #32748E #4299BB #6EB2CC #9CCADC

Accessibility & contrast

On white

3.23

#4299BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.51

#4299BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4299BB

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4299BB	#FFFFFF	#000000	##000000
##4299BB	1.00	3.23	6.51	6.51
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.51	21.00	1.00	1.00
##000000	6.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8796BD

Deuteranopia (green-blind)

#768ABB

Tritanopia (blue-blind)

#00A3A4

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #4299bb;
/* rgb */ color: rgb(66, 153, 187);
/* oklch */ color: oklch(64.4% 0.097 227.0);

Tailwind

colors: {
  custom: {
    50: '#83b7cf',
    500: '#4299bb',
    950: '#000000',
  },
}

SCSS

$custom: #4299bb;
$custom-light: #83b7cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4299bb",
  "rgb": {
    "r": 66,
    "g": 153,
    "b": 187
  },
  "hsl": {
    "h": 196.86,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.64408,
    "c": 0.0968,
    "h": 227
  },
  "luminance": 0.27529
}

Semantic roles & 50–950 ramp

primary

#4299BB

secondary

#C8A091

accent

#7650D7

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1113

muted

#7D8082

Preview Lab

Preview with #4299BB

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

Preview Lab → · Contrast checker → · Palette generator →