#4B91DD#4B91DD

#4B91DD is a light, vivid cyan. Relative luminance 0.270; OKLCH L 64.6% C 0.135 H 252.3°. Best body text is #000000 at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#4B91DD
RGB	rgb(75, 145, 221)
HSL	hsl(211, 68%, 58%)
HSV	hsv(211, 66%, 87%)
CMYK	cmyk(66.1%, 34.4%, 0%, 13.3%)
CIE-LAB	lab(58.94, 1.86, -45.21)
CIE-LCH	lch(58.94, 45.25, 272.35°)
OKLab	oklab(64.58% -0.0409 -0.1282)
OKLCH	oklch(64.58% 0.135 252.3)
XYZ	xyz(26.0734, 26.9645, 72.2232)
Luminance	0.2697 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B91DD #DD974B

analogous

#4BDADD #4B91DD #4E4BDD

triadic

#4B91DD #DD4B91 #91DD4B

tetradic

#4B91DD #DD4BDA #DD974B #4BDD4E

square

#4B91DD #DD4BDA #DD974B #4BDD4E

split-complementary

#4B91DD #DD4E4B #DADD4B

monochromatic

#1C5492 #2572C5 #4B91DD #7EB0E7 #B2D0F0

Accessibility & contrast

On white

3.28

#4B91DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.39

#4B91DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B91DD

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B91DD	#FFFFFF	#000000	##000000
##4B91DD	1.00	3.28	6.39	6.39
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.39	21.00	1.00	1.00
##000000	6.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7095E0

Deuteranopia (green-blind)

#5B88DB

Tritanopia (blue-blind)

#00A3AD

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #4b91dd;
/* rgb */ color: rgb(75, 145, 221);
/* oklch */ color: oklch(64.6% 0.135 252.3);

Tailwind

colors: {
  custom: {
    50: '#8cb0e8',
    500: '#4b91dd',
    950: '#000000',
  },
}

SCSS

$custom: #4b91dd;
$custom-light: #8cb0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4b91dd",
  "rgb": {
    "r": 75,
    "g": 145,
    "b": 221
  },
  "hsl": {
    "h": 211.233,
    "s": 68.224,
    "l": 58.039
  },
  "oklch": {
    "l": 0.64581,
    "c": 0.13461,
    "h": 252.3
  },
  "luminance": 0.26967
}

Semantic roles & 50–950 ramp

primary

#4B91DD

secondary

#DFC3A5

accent

#973DEB

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4B91DD

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

Preview Lab → · Contrast checker → · Palette generator →