#4091B0#4091B0

#4091B0 is a mid, moderate cyan. Relative luminance 0.245; OKLCH L 61.9% C 0.091 H 226.3°. Best body text is #000000 at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#4091B0
RGB	rgb(64, 145, 176)
HSL	hsl(197, 47%, 47%)
HSV	hsv(197, 64%, 69%)
CMYK	cmyk(63.6%, 17.6%, 0%, 31%)
CIE-LAB	lab(56.56, -15.00, -23.58)
CIE-LCH	lch(56.56, 27.94, 237.54°)
OKLab	oklab(61.93% -0.0628 -0.0658)
OKLCH	oklch(61.93% 0.091 226.3)
XYZ	xyz(20.0731, 24.4733, 44.7318)
Luminance	0.2447 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4091B0 #B05F40

analogous

#40B097 #4091B0 #4059B0

triadic

#4091B0 #B04091 #91B040

tetradic

#4091B0 #9740B0 #B05F40 #59B040

square

#4091B0 #9740B0 #B05F40 #59B040

split-complementary

#4091B0 #B04059 #B09740

monochromatic

#1F4756 #306C83 #4091B0 #66ACC7 #93C5D8

Accessibility & contrast

On white

3.56

#4091B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.90

#4091B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4091B0

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4091B0	#FFFFFF	#000000	##000000
##4091B0	1.00	3.56	5.90	5.90
#FFFFFF	3.56	1.00	21.00	21.00
#000000	5.90	21.00	1.00	1.00
##000000	5.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#808EB2

Deuteranopia (green-blind)

#7083B0

Tritanopia (blue-blind)

#009A9B

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #4091b0;
/* rgb */ color: rgb(64, 145, 176);
/* oklch */ color: oklch(61.9% 0.091 226.3);

Tailwind

colors: {
  custom: {
    50: '#80b1c7',
    500: '#4091b0',
    950: '#000000',
  },
}

SCSS

$custom: #4091b0;
$custom-light: #80b1c7;
$custom-dark: #000000;

JSON

{
  "hex": "#4091b0",
  "rgb": {
    "r": 64,
    "g": 145,
    "b": 176
  },
  "hsl": {
    "h": 196.607,
    "s": 46.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.61932,
    "c": 0.09099,
    "h": 226.3
  },
  "luminance": 0.24475
}

Semantic roles & 50–950 ramp

primary

#4091B0

secondary

#C39989

accent

#7651D6

background

#F8FAFC

surface

#EFF5F8

border

#CACFD1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #4091B0

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

Preview Lab → · Contrast checker → · Palette generator →