#4091CB#4091CB

#4091CB is a light, moderate cyan. Relative luminance 0.257; OKLCH L 63.2% C 0.118 H 243.0°. Best body text is #000000 at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#4091CB
RGB	rgb(64, 145, 203)
HSL	hsl(205, 57%, 52%)
HSV	hsv(205, 68%, 80%)
CMYK	cmyk(68.5%, 28.6%, 0%, 20.4%)
CIE-LAB	lab(57.70, -6.04, -37.10)
CIE-LCH	lch(57.70, 37.59, 260.75°)
OKLab	oklab(63.22% -0.0534 -0.1047)
OKLCH	oklch(63.22% 0.118 243)
XYZ	xyz(23.0151, 25.6501, 60.2264)
Luminance	0.2565 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4091CB #CB7A40

analogous

#40CBC0 #4091CB #404BCB

triadic

#4091CB #CB4091 #91CB40

tetradic

#4091CB #C040CB #CB7A40 #4BCB40

square

#4091CB #C040CB #CB7A40 #4BCB40

split-complementary

#4091CB #CB404B #CBC040

monochromatic

#1F4F72 #2C71A2 #4091CB #70ADD8 #A0C8E5

Accessibility & contrast

On white

3.43

#4091CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.13

#4091CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4091CB

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4091CB	#FFFFFF	#000000	##000000
##4091CB	1.00	3.43	6.13	6.13
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.13	21.00	1.00	1.00
##000000	6.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7792CE

Deuteranopia (green-blind)

#6485CA

Tritanopia (blue-blind)

#009FA5

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4091cb;
/* rgb */ color: rgb(64, 145, 203);
/* oklch */ color: oklch(63.2% 0.118 243.0);

Tailwind

colors: {
  custom: {
    50: '#84b1db',
    500: '#4091cb',
    950: '#000000',
  },
}

SCSS

$custom: #4091cb;
$custom-light: #84b1db;
$custom-dark: #000000;

JSON

{
  "hex": "#4091cb",
  "rgb": {
    "r": 64,
    "g": 145,
    "b": 203
  },
  "hsl": {
    "h": 205.036,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.63219,
    "c": 0.11758,
    "h": 243
  },
  "luminance": 0.25653
}

Semantic roles & 50–950 ramp

primary

#4091CB

secondary

#D2AE95

accent

#8747E0

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4091CB

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

Preview Lab → · Contrast checker → · Palette generator →