#4D91BC#4D91BC

#4D91BC is a light, moderate cyan. Relative luminance 0.255; OKLCH L 63.0% C 0.095 H 238.5°. Best body text is #000000 at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#4D91BC
RGB	rgb(77, 145, 188)
HSL	hsl(203, 45%, 52%)
HSV	hsv(203, 59%, 74%)
CMYK	cmyk(59%, 22.9%, 0%, 26.3%)
CIE-LAB	lab(57.52, -8.69, -28.88)
CIE-LCH	lch(57.52, 30.16, 253.25°)
OKLab	oklab(62.99% -0.0495 -0.0808)
OKLCH	oklch(62.99% 0.095 238.5)
XYZ	xyz(22.2597, 25.4573, 51.3079)
Luminance	0.2546 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D91BC #BC784D

analogous

#4DBCAF #4D91BC #4D5ABC

triadic

#4D91BC #BC4D91 #91BC4D

tetradic

#4D91BC #AF4DBC #BC784D #5ABC4D

square

#4D91BC #AF4DBC #BC784D #5ABC4D

split-complementary

#4D91BC #BC4D5A #BCAF4D

monochromatic

#274F68 #387094 #4D91BC #79ACCD #A6C8DD

Accessibility & contrast

On white

3.45

#4D91BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.09

#4D91BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4D91BC

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D91BC	#FFFFFF	#000000	##000000
##4D91BC	1.00	3.45	6.09	6.09
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.09	21.00	1.00	1.00
##000000	6.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D91BE

Deuteranopia (green-blind)

#6E85BB

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #4d91bc;
/* rgb */ color: rgb(77, 145, 188);
/* oklch */ color: oklch(63.0% 0.095 238.5);

Tailwind

colors: {
  custom: {
    50: '#88b1d0',
    500: '#4d91bc',
    950: '#000000',
  },
}

SCSS

$custom: #4d91bc;
$custom-light: #88b1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4d91bc",
  "rgb": {
    "r": 77,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 203.243,
    "s": 45.306,
    "l": 51.961
  },
  "oklch": {
    "l": 0.62988,
    "c": 0.0948,
    "h": 238.5
  },
  "luminance": 0.25459
}

Semantic roles & 50–950 ramp

primary

#4D91BC

secondary

#CBAD9A

accent

#8553D5

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4D91BC

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

Preview Lab → · Contrast checker → · Palette generator →