#4091BC#4091BC

#4091BC is a light, moderate cyan. Relative luminance 0.250; OKLCH L 62.5% C 0.102 H 234.9°. Best body text is #000000 at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#4091BC
RGB	rgb(64, 145, 188)
HSL	hsl(201, 49%, 49%)
HSV	hsv(201, 66%, 74%)
CMYK	cmyk(66%, 22.9%, 0%, 26.3%)
CIE-LAB	lab(57.05, -11.08, -29.65)
CIE-LCH	lch(57.05, 31.65, 249.50°)
OKLab	oklab(62.48% -0.0584 -0.0832)
OKLCH	oklch(62.48% 0.102 234.9)
XYZ	xyz(21.3133, 24.9694, 51.2635)
Luminance	0.2497 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4091BC #BC6B40

analogous

#40BCA9 #4091BC #4053BC

triadic

#4091BC #BC4091 #91BC40

tetradic

#4091BC #A940BC #BC6B40 #53BC40

square

#4091BC #A940BC #BC6B40 #53BC40

split-complementary

#4091BC #BC4053 #BCA940

monochromatic

#214B61 #306E8E #4091BC #6CABCD #9AC5DD

Accessibility & contrast

On white

3.50

#4091BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.99

#4091BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4091BC

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4091BC	#FFFFFF	#000000	##000000
##4091BC	1.00	3.50	5.99	5.99
#FFFFFF	3.50	1.00	21.00	21.00
#000000	5.99	21.00	1.00	1.00
##000000	5.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C90BE

Deuteranopia (green-blind)

#6B83BB

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4091bc;
/* rgb */ color: rgb(64, 145, 188);
/* oklch */ color: oklch(62.5% 0.102 234.9);

Tailwind

colors: {
  custom: {
    50: '#82b1d0',
    500: '#4091bc',
    950: '#000000',
  },
}

SCSS

$custom: #4091bc;
$custom-light: #82b1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4091bc",
  "rgb": {
    "r": 64,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 200.806,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.62481,
    "c": 0.10166,
    "h": 234.9
  },
  "luminance": 0.24972
}

Semantic roles & 50–950 ramp

primary

#4091BC

secondary

#C9A38F

accent

#7F4FD9

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4091BC

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

Preview Lab → · Contrast checker → · Palette generator →