#4091CC#4091CC

#4091CC is a light, moderate cyan. Relative luminance 0.257; OKLCH L 63.3% C 0.119 H 243.4°. Best body text is #000000 at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#4091CC
RGB	rgb(64, 145, 204)
HSL	hsl(205, 58%, 53%)
HSV	hsv(205, 69%, 80%)
CMYK	cmyk(68.6%, 28.9%, 0%, 20%)
CIE-LAB	lab(57.75, -5.70, -37.59)
CIE-LCH	lch(57.75, 38.02, 261.38°)
OKLab	oklab(63.27% -0.0531 -0.1062)
OKLCH	oklch(63.27% 0.119 243.4)
XYZ	xyz(23.1347, 25.6979, 60.8560)
Luminance	0.2570 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4091CC #CC7B40

analogous

#40CCC1 #4091CC #404BCC

triadic

#4091CC #CC4091 #91CC40

tetradic

#4091CC #C140CC #CC7B40 #4BCC40

square

#4091CC #C140CC #CC7B40 #4BCC40

split-complementary

#4091CC #CC404B #CCC140

monochromatic

#1F4F73 #2C71A3 #4091CC #70ADD9 #A1C9E6

Accessibility & contrast

On white

3.42

#4091CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.14

#4091CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4091CC

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4091CC	#FFFFFF	#000000	##000000
##4091CC	1.00	3.42	6.14	6.14
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.14	21.00	1.00	1.00
##000000	6.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7692CF

Deuteranopia (green-blind)

#6385CB

Tritanopia (blue-blind)

#009FA6

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4091cc;
/* rgb */ color: rgb(64, 145, 204);
/* oklch */ color: oklch(63.3% 0.119 243.4);

Tailwind

colors: {
  custom: {
    50: '#84b1dc',
    500: '#4091cc',
    950: '#000000',
  },
}

SCSS

$custom: #4091cc;
$custom-light: #84b1dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4091cc",
  "rgb": {
    "r": 64,
    "g": 145,
    "b": 204
  },
  "hsl": {
    "h": 205.286,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.63271,
    "c": 0.11872,
    "h": 243.4
  },
  "luminance": 0.257
}

Semantic roles & 50–950 ramp

primary

#4091CC

secondary

#D2AF95

accent

#8847E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4091CC

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

Preview Lab → · Contrast checker → · Palette generator →