#4D81DB#4D81DB

#4D81DB is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.1% C 0.148 H 260.6°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#4D81DB
RGB	rgb(77, 129, 219)
HSL	hsl(218, 66%, 58%)
HSV	hsv(218, 65%, 86%)
CMYK	cmyk(64.8%, 41.1%, 0%, 14.1%)
CIE-LAB	lab(54.44, 11.06, -51.23)
CIE-LCH	lch(54.44, 52.41, 282.18°)
OKLab	oklab(61.06% -0.0241 -0.146)
OKLCH	oklch(61.06% 0.148 260.6)
XYZ	xyz(23.6925, 22.3905, 70.0773)
Luminance	0.2239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D81DB #DBA74D

analogous

#4DC8DB #4D81DB #604DDB

triadic

#4D81DB #DB4D81 #81DB4D

tetradic

#4D81DB #DB4DC8 #DBA74D #4DDB60

square

#4D81DB #DB4DC8 #DBA74D #4DDB60

split-complementary

#4D81DB #DB604D #C8DB4D

monochromatic

#1D4790 #2761C3 #4D81DB #80A5E5 #B3C9F0

Accessibility & contrast

On white

3.83

#4D81DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#4D81DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4D81DB

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D81DB	#FFFFFF	#000000	##000000
##4D81DB	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5889DF

Deuteranopia (green-blind)

#427CD9

Tritanopia (blue-blind)

#0096A3

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4d81db;
/* rgb */ color: rgb(77, 129, 219);
/* oklch */ color: oklch(61.1% 0.148 260.6);

Tailwind

colors: {
  custom: {
    50: '#8ca5e6',
    500: '#4d81db',
    950: '#000000',
  },
}

SCSS

$custom: #4d81db;
$custom-light: #8ca5e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4d81db",
  "rgb": {
    "r": 77,
    "g": 129,
    "b": 219
  },
  "hsl": {
    "h": 218.028,
    "s": 66.355,
    "l": 58.039
  },
  "oklch": {
    "l": 0.61064,
    "c": 0.148,
    "h": 260.6
  },
  "luminance": 0.22393
}

Semantic roles & 50–950 ramp

primary

#4D81DB

secondary

#DEC9A6

accent

#AB3FE9

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4D81DB

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

Preview Lab → · Contrast checker → · Palette generator →