#4099BE#4099BE

#4099BE is a light, moderate cyan. Relative luminance 0.276; OKLCH L 64.5% C 0.100 H 228.8°. Best body text is #000000 at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#4099BE
RGB	rgb(64, 153, 190)
HSL	hsl(198, 50%, 50%)
HSV	hsv(198, 66%, 75%)
CMYK	cmyk(66.3%, 19.5%, 0%, 25.5%)
CIE-LAB	lab(59.51, -14.84, -26.96)
CIE-LCH	lch(59.51, 30.77, 241.17°)
OKLab	oklab(64.48% -0.0661 -0.0754)
OKLCH	oklch(64.48% 0.1 228.8)
XYZ	xyz(22.7962, 27.5877, 52.8288)
Luminance	0.2759 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4099BE #BE6540

analogous

#40BEA4 #4099BE #405ABE

triadic

#4099BE #BE4099 #99BE40

tetradic

#4099BE #A440BE #BE6540 #5ABE40

square

#4099BE #A440BE #BE6540 #5ABE40

split-complementary

#4099BE #BE405A #BEA440

monochromatic

#214F62 #317490 #4099BE #6DB2CE #9BCADD

Accessibility & contrast

On white

3.22

#4099BE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.52

#4099BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4099BE

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4099BE	#FFFFFF	#000000	##000000
##4099BE	1.00	3.22	6.52	6.52
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.52	21.00	1.00	1.00
##000000	6.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8697C0

Deuteranopia (green-blind)

#748ABE

Tritanopia (blue-blind)

#00A3A5

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #4099be;
/* rgb */ color: rgb(64, 153, 190);
/* oklch */ color: oklch(64.5% 0.100 228.8);

Tailwind

colors: {
  custom: {
    50: '#83b7d1',
    500: '#4099be',
    950: '#000000',
  },
}

SCSS

$custom: #4099be;
$custom-light: #83b7d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4099be",
  "rgb": {
    "r": 64,
    "g": 153,
    "b": 190
  },
  "hsl": {
    "h": 197.619,
    "s": 49.606,
    "l": 49.804
  },
  "oklch": {
    "l": 0.64475,
    "c": 0.10029,
    "h": 228.8
  },
  "luminance": 0.2759
}

Semantic roles & 50–950 ramp

primary

#4099BE

secondary

#C9A190

accent

#774FD9

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1114

muted

#7D8082

Preview Lab

Preview with #4099BE

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

Preview Lab → · Contrast checker → · Palette generator →