#4091B3#4091B3

#4091B3 is a light, moderate cyan. Relative luminance 0.246; OKLCH L 62.1% C 0.093 H 228.7°. Best body text is #000000 at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#4091B3
RGB	rgb(64, 145, 179)
HSL	hsl(198, 47%, 48%)
HSV	hsv(198, 64%, 70%)
CMYK	cmyk(64.2%, 19%, 0%, 29.8%)
CIE-LAB	lab(56.68, -14.03, -25.10)
CIE-LCH	lch(56.68, 28.76, 240.80°)
OKLab	oklab(62.07% -0.0617 -0.0702)
OKLCH	oklch(62.07% 0.093 228.7)
XYZ	xyz(20.3732, 24.5934, 46.3124)
Luminance	0.2460 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4091B3 #B36240

analogous

#40B39B #4091B3 #4058B3

triadic

#4091B3 #B34091 #91B340

tetradic

#4091B3 #9B40B3 #B36240 #58B340

square

#4091B3 #9B40B3 #B36240 #58B340

split-complementary

#4091B3 #B34058 #B39B40

monochromatic

#204859 #306C86 #4091B3 #67ACC9 #94C5D9

Accessibility & contrast

On white

3.55

#4091B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.92

#4091B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4091B3

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4091B3	#FFFFFF	#000000	##000000
##4091B3	1.00	3.55	5.92	5.92
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.92	21.00	1.00	1.00
##000000	5.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8FB5

Deuteranopia (green-blind)

#6F83B3

Tritanopia (blue-blind)

#009B9C

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #4091b3;
/* rgb */ color: rgb(64, 145, 179);
/* oklch */ color: oklch(62.1% 0.093 228.7);

Tailwind

colors: {
  custom: {
    50: '#81b1c9',
    500: '#4091b3',
    950: '#000000',
  },
}

SCSS

$custom: #4091b3;
$custom-light: #81b1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4091b3",
  "rgb": {
    "r": 64,
    "g": 145,
    "b": 179
  },
  "hsl": {
    "h": 197.739,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.62066,
    "c": 0.09342,
    "h": 228.7
  },
  "luminance": 0.24595
}

Semantic roles & 50–950 ramp

primary

#4091B3

secondary

#C49C8A

accent

#7951D7

background

#F8FAFC

surface

#EFF5F8

border

#CACFD1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #4091B3

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

Preview Lab → · Contrast checker → · Palette generator →