#4091B5#4091B5

#4091B5 is a light, moderate cyan. Relative luminance 0.247; OKLCH L 62.2% C 0.095 H 230.2°. Best body text is #000000 at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#4091B5
RGB	rgb(64, 145, 181)
HSL	hsl(198, 48%, 48%)
HSV	hsv(198, 65%, 71%)
CMYK	cmyk(64.6%, 19.9%, 0%, 29%)
CIE-LAB	lab(56.76, -13.38, -26.12)
CIE-LCH	lch(56.76, 29.35, 242.87°)
OKLab	oklab(62.16% -0.0609 -0.0731)
OKLCH	oklch(62.16% 0.095 230.2)
XYZ	xyz(20.5770, 24.6748, 47.3854)
Luminance	0.2468 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4091B5 #B56440

analogous

#40B59F #4091B5 #4056B5

triadic

#4091B5 #B54091 #91B540

tetradic

#4091B5 #9F40B5 #B56440 #56B540

square

#4091B5 #9F40B5 #B56440 #56B540

split-complementary

#4091B5 #B54056 #B59F40

monochromatic

#20495B #306D88 #4091B5 #68ACCA #96C5DA

Accessibility & contrast

On white

3.54

#4091B5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.94

#4091B5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4091B5

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4091B5	#FFFFFF	#000000	##000000
##4091B5	1.00	3.54	5.94	5.94
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.94	21.00	1.00	1.00
##000000	5.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8FB7

Deuteranopia (green-blind)

#6E83B5

Tritanopia (blue-blind)

#009B9D

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #4091b5;
/* rgb */ color: rgb(64, 145, 181);
/* oklch */ color: oklch(62.2% 0.095 230.2);

Tailwind

colors: {
  custom: {
    50: '#81b1cb',
    500: '#4091b5',
    950: '#000000',
  },
}

SCSS

$custom: #4091b5;
$custom-light: #81b1cb;
$custom-dark: #000000;

JSON

{
  "hex": "#4091b5",
  "rgb": {
    "r": 64,
    "g": 145,
    "b": 181
  },
  "hsl": {
    "h": 198.462,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.62156,
    "c": 0.09515,
    "h": 230.2
  },
  "luminance": 0.24677
}

Semantic roles & 50–950 ramp

primary

#4091B5

secondary

#C59D8B

accent

#7A50D7

background

#F8FAFC

surface

#F0F5F8

border

#CBCFD1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #4091B5

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

Preview Lab → · Contrast checker → · Palette generator →