#4091BF#4091BF

#4091BF is a light, moderate cyan. Relative luminance 0.251; OKLCH L 62.6% C 0.105 H 236.7°. Best body text is #000000 at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#4091BF
RGB	rgb(64, 145, 191)
HSL	hsl(202, 50%, 50%)
HSV	hsv(202, 66%, 75%)
CMYK	cmyk(66.5%, 24.1%, 0%, 25.1%)
CIE-LAB	lab(57.17, -10.09, -31.15)
CIE-LCH	lch(57.17, 32.74, 252.06°)
OKLab	oklab(62.62% -0.0574 -0.0875)
OKLCH	oklch(62.62% 0.105 236.7)
XYZ	xyz(21.6401, 25.1001, 52.9845)
Luminance	0.2510 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4091BF #BF6E40

analogous

#40BFAD #4091BF #4052BF

triadic

#4091BF #BF4091 #91BF40

tetradic

#4091BF #AD40BF #BF6E40 #52BF40

square

#4091BF #AD40BF #BF6E40 #52BF40

split-complementary

#4091BF #BF4052 #BFAD40

monochromatic

#214B63 #316E91 #4091BF #6EABCE #9CC6DE

Accessibility & contrast

On white

3.49

#4091BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.02

#4091BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4091BF

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4091BF	#FFFFFF	#000000	##000000
##4091BF	1.00	3.49	6.02	6.02
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.02	21.00	1.00	1.00
##000000	6.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B90C1

Deuteranopia (green-blind)

#6A84BE

Tritanopia (blue-blind)

#009DA1

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4091bf;
/* rgb */ color: rgb(64, 145, 191);
/* oklch */ color: oklch(62.6% 0.105 236.7);

Tailwind

colors: {
  custom: {
    50: '#82b1d2',
    500: '#4091bf',
    950: '#000000',
  },
}

SCSS

$custom: #4091bf;
$custom-light: #82b1d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4091bf",
  "rgb": {
    "r": 64,
    "g": 145,
    "b": 191
  },
  "hsl": {
    "h": 201.732,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.62624,
    "c": 0.10466,
    "h": 236.7
  },
  "luminance": 0.25102
}

Semantic roles & 50–950 ramp

primary

#4091BF

secondary

#CAA691

accent

#814ED9

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4091BF

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

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