#4B90DB#4B90DB

#4B90DB is a light, vivid cyan. Relative luminance 0.266; OKLCH L 64.2% C 0.133 H 252.3°. Best body text is #000000 at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#4B90DB
RGB	rgb(75, 144, 219)
HSL	hsl(211, 67%, 58%)
HSV	hsv(211, 66%, 86%)
CMYK	cmyk(65.8%, 34.2%, 0%, 14.1%)
CIE-LAB	lab(58.56, 1.76, -44.70)
CIE-LCH	lch(58.56, 44.73, 272.26°)
OKLab	oklab(64.25% -0.0405 -0.1267)
OKLCH	oklch(64.25% 0.133 252.3)
XYZ	xyz(25.6564, 26.5543, 70.7775)
Luminance	0.2656 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B90DB #DB964B

analogous

#4BD8DB #4B90DB #4E4BDB

triadic

#4B90DB #DB4B90 #90DB4B

tetradic

#4B90DB #DB4BD8 #DB964B #4BDB4E

square

#4B90DB #DB4BD8 #DB964B #4BDB4E

split-complementary

#4B90DB #DB4E4B #D8DB4B

monochromatic

#1D538F #2771C2 #4B90DB #7EAFE5 #B1CFEF

Accessibility & contrast

On white

3.33

#4B90DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.31

#4B90DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B90DB

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B90DB	#FFFFFF	#000000	##000000
##4B90DB	1.00	3.33	6.31	6.31
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.31	21.00	1.00	1.00
##000000	6.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F94DE

Deuteranopia (green-blind)

#5B87D9

Tritanopia (blue-blind)

#00A1AB

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #4b90db;
/* rgb */ color: rgb(75, 144, 219);
/* oklch */ color: oklch(64.2% 0.133 252.3);

Tailwind

colors: {
  custom: {
    50: '#8bb0e6',
    500: '#4b90db',
    950: '#000000',
  },
}

SCSS

$custom: #4b90db;
$custom-light: #8bb0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4b90db",
  "rgb": {
    "r": 75,
    "g": 144,
    "b": 219
  },
  "hsl": {
    "h": 211.25,
    "s": 66.667,
    "l": 57.647
  },
  "oklch": {
    "l": 0.64249,
    "c": 0.13305,
    "h": 252.3
  },
  "luminance": 0.26557
}

Semantic roles & 50–950 ramp

primary

#4B90DB

secondary

#DEC2A4

accent

#973EEA

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4B90DB

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

Preview Lab → · Contrast checker → · Palette generator →