#4780DD#4780DD

#4780DD is a mid, vivid blue. Relative luminance 0.220; OKLCH L 60.7% C 0.154 H 259.7°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#4780DD
RGB	rgb(71, 128, 221)
HSL	hsl(217, 69%, 57%)
HSV	hsv(217, 68%, 87%)
CMYK	cmyk(67.9%, 42.1%, 0%, 13.3%)
CIE-LAB	lab(54.02, 11.39, -53.03)
CIE-LCH	lch(54.02, 54.24, 282.12°)
OKLab	oklab(60.71% -0.0275 -0.1514)
OKLCH	oklch(60.71% 0.154 259.7)
XYZ	xyz(23.3642, 21.9960, 71.4069)
Luminance	0.2200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4780DD #DDA447

analogous

#47CBDD #4780DD #5947DD

triadic

#4780DD #DD4780 #80DD47

tetradic

#4780DD #DD47CB #DDA447 #47DD59

square

#4780DD #DD47CB #DDA447 #47DD59

split-complementary

#4780DD #DD5947 #CBDD47

monochromatic

#1A478F #2460C3 #4780DD #7BA4E7 #AEC7F0

Accessibility & contrast

On white

3.89

#4780DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#4780DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4780DD

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4780DD	#FFFFFF	#000000	##000000
##4780DD	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5489E1

Deuteranopia (green-blind)

#3B7BDB

Tritanopia (blue-blind)

#0095A4

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4780dd;
/* rgb */ color: rgb(71, 128, 221);
/* oklch */ color: oklch(60.7% 0.154 259.7);

Tailwind

colors: {
  custom: {
    50: '#8aa4e8',
    500: '#4780dd',
    950: '#000000',
  },
}

SCSS

$custom: #4780dd;
$custom-light: #8aa4e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4780dd",
  "rgb": {
    "r": 71,
    "g": 128,
    "b": 221
  },
  "hsl": {
    "h": 217.2,
    "s": 68.807,
    "l": 57.255
  },
  "oklch": {
    "l": 0.60709,
    "c": 0.1539,
    "h": 259.7
  },
  "luminance": 0.21998
}

Semantic roles & 50–950 ramp

primary

#4780DD

secondary

#DEC7A2

accent

#A93CEC

background

#F9FAFE

surface

#F1F3FD

border

#CBCDD5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4780DD

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

Preview Lab → · Contrast checker → · Palette generator →