#3677DB#3677DB

#3677DB is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.0% C 0.167 H 259.0°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#3677DB
RGB	rgb(54, 119, 219)
HSL	hsl(216, 70%, 54%)
HSV	hsv(216, 75%, 86%)
CMYK	cmyk(75.3%, 45.7%, 0%, 14.1%)
CIE-LAB	lab(50.79, 13.89, -57.12)
CIE-LCH	lch(50.79, 58.78, 283.67°)
OKLab	oklab(58.01% -0.032 -0.1638)
OKLCH	oklch(58.01% 0.167 259)
XYZ	xyz(20.8997, 19.0900, 69.5874)
Luminance	0.1909 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3677DB #DB9A36

analogous

#36C9DB #3677DB #4736DB

triadic

#3677DB #DB3677 #77DB36

tetradic

#3677DB #DB36C9 #DB9A36 #36DB47

square

#3677DB #DB36C9 #DB9A36 #36DB47

split-complementary

#3677DB #DB4736 #C9DB36

monochromatic

#174080 #205AB4 #3677DB #6A9AE4 #9EBDEE

Accessibility & contrast

On white

4.36

#3677DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#3677DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3677DB

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3677DB	#FFFFFF	#000000	##000000
##3677DB	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4281DF

Deuteranopia (green-blind)

#1B72D9

Tritanopia (blue-blind)

#008F9E

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3677db;
/* rgb */ color: rgb(54, 119, 219);
/* oklch */ color: oklch(58.0% 0.167 259.0);

Tailwind

colors: {
  custom: {
    50: '#839de7',
    500: '#3677db',
    950: '#000000',
  },
}

SCSS

$custom: #3677db;
$custom-light: #839de7;
$custom-dark: #000000;

JSON

{
  "hex": "#3677db",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 219
  },
  "hsl": {
    "h": 216.364,
    "s": 69.62,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58005,
    "c": 0.16691,
    "h": 259
  },
  "luminance": 0.19092
}

Semantic roles & 50–950 ramp

primary

#3677DB

secondary

#DABE93

accent

#A73BEC

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3677DB

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

Preview Lab → · Contrast checker → · Palette generator →