#4299BC#4299BC

#4299BC is a light, moderate cyan. Relative luminance 0.276; OKLCH L 64.5% C 0.098 H 227.8°. Best body text is #000000 at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#4299BC
RGB	rgb(66, 153, 188)
HSL	hsl(197, 48%, 50%)
HSV	hsv(197, 65%, 74%)
CMYK	cmyk(64.9%, 18.6%, 0%, 26.3%)
CIE-LAB	lab(59.50, -15.15, -25.85)
CIE-LCH	lch(59.50, 29.97, 239.63°)
OKLab	oklab(64.45% -0.0656 -0.0723)
OKLCH	oklch(64.45% 0.098 227.8)
XYZ	xyz(22.7115, 27.5692, 51.6917)
Luminance	0.2757 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4299BC #BC6542

analogous

#42BCA2 #4299BC #425CBC

triadic

#4299BC #BC4299 #99BC42

tetradic

#4299BC #A242BC #BC6542 #5CBC42

square

#4299BC #A242BC #BC6542 #5CBC42

split-complementary

#4299BC #BC425C #BCA242

monochromatic

#224F61 #32748F #4299BC #6FB2CC #9CCADC

Accessibility & contrast

On white

3.22

#4299BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.51

#4299BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4299BC

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4299BC	#FFFFFF	#000000	##000000
##4299BC	1.00	3.22	6.51	6.51
#FFFFFF	3.22	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)

#8796BE

Deuteranopia (green-blind)

#768ABC

Tritanopia (blue-blind)

#00A3A4

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #4299bc;
/* rgb */ color: rgb(66, 153, 188);
/* oklch */ color: oklch(64.5% 0.098 227.8);

Tailwind

colors: {
  custom: {
    50: '#83b7d0',
    500: '#4299bc',
    950: '#000000',
  },
}

SCSS

$custom: #4299bc;
$custom-light: #83b7d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4299bc",
  "rgb": {
    "r": 66,
    "g": 153,
    "b": 188
  },
  "hsl": {
    "h": 197.213,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.64453,
    "c": 0.09761,
    "h": 227.8
  },
  "luminance": 0.27572
}

Semantic roles & 50–950 ramp

primary

#4299BC

secondary

#C9A191

accent

#7750D8

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1114

muted

#7D8082

Preview Lab

Preview with #4299BC

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

Preview Lab → · Contrast checker → · Palette generator →