#4B91BC#4B91BC

#4B91BC is a light, moderate cyan. Relative luminance 0.254; OKLCH L 62.9% C 0.096 H 237.9°. Best body text is #000000 at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#4B91BC
RGB	rgb(75, 145, 188)
HSL	hsl(203, 46%, 52%)
HSV	hsv(203, 60%, 74%)
CMYK	cmyk(60.1%, 22.9%, 0%, 26.3%)
CIE-LAB	lab(57.44, -9.09, -29.01)
CIE-LCH	lch(57.44, 30.40, 252.61°)
OKLab	oklab(62.9% -0.051 -0.0812)
OKLCH	oklch(62.9% 0.096 237.9)
XYZ	xyz(22.1007, 25.3754, 51.3004)
Luminance	0.2538 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B91BC #BC764B

analogous

#4BBCAF #4B91BC #4B59BC

triadic

#4B91BC #BC4B91 #91BC4B

tetradic

#4B91BC #AF4BBC #BC764B #59BC4B

square

#4B91BC #AF4BBC #BC764B #59BC4B

split-complementary

#4B91BC #BC4B59 #BCAF4B

monochromatic

#264E66 #377093 #4B91BC #78ACCD #A4C8DD

Accessibility & contrast

On white

3.46

#4B91BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.08

#4B91BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B91BC

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B91BC	#FFFFFF	#000000	##000000
##4B91BC	1.00	3.46	6.08	6.08
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.08	21.00	1.00	1.00
##000000	6.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D90BE

Deuteranopia (green-blind)

#6E85BB

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #4b91bc;
/* rgb */ color: rgb(75, 145, 188);
/* oklch */ color: oklch(62.9% 0.096 237.9);

Tailwind

colors: {
  custom: {
    50: '#87b1d0',
    500: '#4b91bc',
    950: '#000000',
  },
}

SCSS

$custom: #4b91bc;
$custom-light: #87b1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b91bc",
  "rgb": {
    "r": 75,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 202.832,
    "s": 45.749,
    "l": 51.569
  },
  "oklch": {
    "l": 0.62903,
    "c": 0.09591,
    "h": 237.9
  },
  "luminance": 0.25377
}

Semantic roles & 50–950 ramp

primary

#4B91BC

secondary

#CAAB99

accent

#8452D5

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4B91BC

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

Preview Lab → · Contrast checker → · Palette generator →