#3679DB#3679DB

#3679DB is a mid, vivid blue. Relative luminance 0.196; OKLCH L 58.4% C 0.165 H 258.2°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#3679DB
RGB	rgb(54, 121, 219)
HSL	hsl(216, 70%, 54%)
HSV	hsv(216, 75%, 86%)
CMYK	cmyk(75.3%, 44.7%, 0%, 14.1%)
CIE-LAB	lab(51.35, 12.65, -56.22)
CIE-LCH	lch(51.35, 57.63, 282.68°)
OKLab	oklab(58.43% -0.0336 -0.1612)
OKLCH	oklch(58.43% 0.165 258.2)
XYZ	xyz(21.1402, 19.5711, 69.6675)
Luminance	0.1957 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3679DB #DB9836

analogous

#36CCDB #3679DB #4536DB

triadic

#3679DB #DB3679 #79DB36

tetradic

#3679DB #DB36CC #DB9836 #36DB45

square

#3679DB #DB36CC #DB9836 #36DB45

split-complementary

#3679DB #DB4536 #CCDB36

monochromatic

#174180 #205CB4 #3679DB #6A9CE4 #9EBEEE

Accessibility & contrast

On white

4.27

#3679DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#3679DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3679DB

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3679DB	#FFFFFF	#000000	##000000
##3679DB	1.00	4.27	4.91	4.91
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4682DF

Deuteranopia (green-blind)

#2373D9

Tritanopia (blue-blind)

#00909F

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3679db;
/* rgb */ color: rgb(54, 121, 219);
/* oklch */ color: oklch(58.4% 0.165 258.2);

Tailwind

colors: {
  custom: {
    50: '#839fe7',
    500: '#3679db',
    950: '#000000',
  },
}

SCSS

$custom: #3679db;
$custom-light: #839fe7;
$custom-dark: #000000;

JSON

{
  "hex": "#3679db",
  "rgb": {
    "r": 54,
    "g": 121,
    "b": 219
  },
  "hsl": {
    "h": 215.636,
    "s": 69.62,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58434,
    "c": 0.16463,
    "h": 258.2
  },
  "luminance": 0.19573
}

Semantic roles & 50–950 ramp

primary

#3679DB

secondary

#DABD93

accent

#A53BEC

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3679DB

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

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