#4B90DD#4B90DD

#4B90DD is a light, vivid cyan. Relative luminance 0.267; OKLCH L 64.4% C 0.136 H 252.9°. Best body text is #000000 at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#4B90DD
RGB	rgb(75, 144, 221)
HSL	hsl(212, 68%, 58%)
HSV	hsv(212, 66%, 87%)
CMYK	cmyk(66.1%, 34.8%, 0%, 13.3%)
CIE-LAB	lab(58.66, 2.44, -45.66)
CIE-LCH	lch(58.66, 45.73, 273.06°)
OKLab	oklab(64.36% -0.04 -0.1295)
OKLCH	oklch(64.36% 0.136 252.9)
XYZ	xyz(25.9213, 26.6602, 72.1725)
Luminance	0.2666 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B90DD #DD984B

analogous

#4BD9DD #4B90DD #4F4BDD

triadic

#4B90DD #DD4B90 #90DD4B

tetradic

#4B90DD #DD4BD9 #DD984B #4BDD4F

square

#4B90DD #DD4BD9 #DD984B #4BDD4F

split-complementary

#4B90DD #DD4F4B #D9DD4B

monochromatic

#1C5492 #2571C5 #4B90DD #7EB0E7 #B2CFF0

Accessibility & contrast

On white

3.32

#4B90DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.33

#4B90DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B90DD

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B90DD	#FFFFFF	#000000	##000000
##4B90DD	1.00	3.32	6.33	6.33
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.33	21.00	1.00	1.00
##000000	6.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E95E0

Deuteranopia (green-blind)

#5987DB

Tritanopia (blue-blind)

#00A2AC

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #4b90dd;
/* rgb */ color: rgb(75, 144, 221);
/* oklch */ color: oklch(64.4% 0.136 252.9);

Tailwind

colors: {
  custom: {
    50: '#8cb0e8',
    500: '#4b90dd',
    950: '#000000',
  },
}

SCSS

$custom: #4b90dd;
$custom-light: #8cb0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4b90dd",
  "rgb": {
    "r": 75,
    "g": 144,
    "b": 221
  },
  "hsl": {
    "h": 211.644,
    "s": 68.224,
    "l": 58.039
  },
  "oklch": {
    "l": 0.64359,
    "c": 0.13556,
    "h": 252.9
  },
  "luminance": 0.26663
}

Semantic roles & 50–950 ramp

primary

#4B90DD

secondary

#DFC3A5

accent

#993DEB

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4B90DD

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

Preview Lab → · Contrast checker → · Palette generator →