#4091B4#4091B4

#4091B4 is a light, moderate cyan. Relative luminance 0.246; OKLCH L 62.1% C 0.094 H 229.4°. Best body text is #000000 at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#4091B4
RGB	rgb(64, 145, 180)
HSL	hsl(198, 48%, 48%)
HSV	hsv(198, 64%, 71%)
CMYK	cmyk(64.4%, 19.4%, 0%, 29.4%)
CIE-LAB	lab(56.72, -13.71, -25.61)
CIE-LCH	lch(56.72, 29.05, 241.85°)
OKLab	oklab(62.11% -0.0613 -0.0716)
OKLCH	oklch(62.11% 0.094 229.4)
XYZ	xyz(20.4747, 24.6340, 46.8470)
Luminance	0.2464 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4091B4 #B46340

analogous

#40B49D #4091B4 #4057B4

triadic

#4091B4 #B44091 #91B440

tetradic

#4091B4 #9D40B4 #B46340 #57B440

square

#4091B4 #9D40B4 #B46340 #57B440

split-complementary

#4091B4 #B44057 #B49D40

monochromatic

#20485A #306D87 #4091B4 #68ACC9 #95C5D9

Accessibility & contrast

On white

3.54

#4091B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.93

#4091B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4091B4

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4091B4	#FFFFFF	#000000	##000000
##4091B4	1.00	3.54	5.93	5.93
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.93	21.00	1.00	1.00
##000000	5.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8FB6

Deuteranopia (green-blind)

#6F83B4

Tritanopia (blue-blind)

#009B9C

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #4091b4;
/* rgb */ color: rgb(64, 145, 180);
/* oklch */ color: oklch(62.1% 0.094 229.4);

Tailwind

colors: {
  custom: {
    50: '#81b1ca',
    500: '#4091b4',
    950: '#000000',
  },
}

SCSS

$custom: #4091b4;
$custom-light: #81b1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4091b4",
  "rgb": {
    "r": 64,
    "g": 145,
    "b": 180
  },
  "hsl": {
    "h": 198.103,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.62111,
    "c": 0.09428,
    "h": 229.4
  },
  "luminance": 0.24636
}

Semantic roles & 50–950 ramp

primary

#4091B4

secondary

#C59C8B

accent

#7951D7

background

#F8FAFC

surface

#EFF5F8

border

#CACFD1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #4091B4

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

Preview Lab → · Contrast checker → · Palette generator →