#4B91DB#4B91DB

#4B91DB is a light, vivid cyan. Relative luminance 0.269; OKLCH L 64.5% C 0.132 H 251.7°. Best body text is #000000 at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#4B91DB
RGB	rgb(75, 145, 219)
HSL	hsl(211, 67%, 58%)
HSV	hsv(211, 66%, 86%)
CMYK	cmyk(65.8%, 33.8%, 0%, 14.1%)
CIE-LAB	lab(58.84, 1.18, -44.25)
CIE-LCH	lch(58.84, 44.27, 271.52°)
OKLab	oklab(64.47% -0.0415 -0.1254)
OKLCH	oklch(64.47% 0.132 251.7)
XYZ	xyz(25.8085, 26.8585, 70.8282)
Luminance	0.2686 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B91DB #DB954B

analogous

#4BD9DB #4B91DB #4D4BDB

triadic

#4B91DB #DB4B91 #91DB4B

tetradic

#4B91DB #DB4BD9 #DB954B #4BDB4D

square

#4B91DB #DB4BD9 #DB954B #4BDB4D

split-complementary

#4B91DB #DB4D4B #D9DB4B

monochromatic

#1D548F #2772C2 #4B91DB #7EB0E5 #B1CFEF

Accessibility & contrast

On white

3.30

#4B91DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.37

#4B91DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B91DB

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B91DB	#FFFFFF	#000000	##000000
##4B91DB	1.00	3.30	6.37	6.37
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.37	21.00	1.00	1.00
##000000	6.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7195DE

Deuteranopia (green-blind)

#5C87DA

Tritanopia (blue-blind)

#00A2AC

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #4b91db;
/* rgb */ color: rgb(75, 145, 219);
/* oklch */ color: oklch(64.5% 0.132 251.7);

Tailwind

colors: {
  custom: {
    50: '#8bb0e6',
    500: '#4b91db',
    950: '#000000',
  },
}

SCSS

$custom: #4b91db;
$custom-light: #8bb0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4b91db",
  "rgb": {
    "r": 75,
    "g": 145,
    "b": 219
  },
  "hsl": {
    "h": 210.833,
    "s": 66.667,
    "l": 57.647
  },
  "oklch": {
    "l": 0.64472,
    "c": 0.1321,
    "h": 251.7
  },
  "luminance": 0.26861
}

Semantic roles & 50–950 ramp

primary

#4B91DB

secondary

#DEC2A4

accent

#963EEA

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4B91DB

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

Preview Lab → · Contrast checker → · Palette generator →