#4B91BF#4B91BF

#4B91BF is a light, moderate cyan. Relative luminance 0.255; OKLCH L 63.0% C 0.099 H 239.7°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#4B91BF
RGB	rgb(75, 145, 191)
HSL	hsl(204, 48%, 52%)
HSV	hsv(204, 61%, 75%)
CMYK	cmyk(60.7%, 24.1%, 0%, 25.1%)
CIE-LAB	lab(57.57, -8.12, -30.51)
CIE-LCH	lch(57.57, 31.57, 255.10°)
OKLab	oklab(63.04% -0.0499 -0.0856)
OKLCH	oklch(63.04% 0.099 239.7)
XYZ	xyz(22.4275, 25.5061, 53.0214)
Luminance	0.2551 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B91BF #BF794B

analogous

#4BBFB3 #4B91BF #4B57BF

triadic

#4B91BF #BF4B91 #91BF4B

tetradic

#4B91BF #B34BBF #BF794B #57BF4B

square

#4B91BF #B34BBF #BF794B #57BF4B

split-complementary

#4B91BF #BF4B57 #BFB34B

monochromatic

#264F6A #367097 #4B91BF #78ADCF #A5C8DF

Accessibility & contrast

On white

3.44

#4B91BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#4B91BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B91BF

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B91BF	#FFFFFF	#000000	##000000
##4B91BF	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C91C1

Deuteranopia (green-blind)

#6C85BE

Tritanopia (blue-blind)

#009DA1

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #4b91bf;
/* rgb */ color: rgb(75, 145, 191);
/* oklch */ color: oklch(63.0% 0.099 239.7);

Tailwind

colors: {
  custom: {
    50: '#87b1d2',
    500: '#4b91bf',
    950: '#000000',
  },
}

SCSS

$custom: #4b91bf;
$custom-light: #87b1d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4b91bf",
  "rgb": {
    "r": 75,
    "g": 145,
    "b": 191
  },
  "hsl": {
    "h": 203.793,
    "s": 47.541,
    "l": 52.157
  },
  "oklch": {
    "l": 0.63045,
    "c": 0.09907,
    "h": 239.7
  },
  "luminance": 0.25508
}

Semantic roles & 50–950 ramp

primary

#4B91BF

secondary

#CCAE9A

accent

#8651D7

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4B91BF

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

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