#3678BF#3678BF

#3678BF is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.5% C 0.129 H 252.5°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3678BF
RGB	rgb(54, 120, 191)
HSL	hsl(211, 56%, 48%)
HSV	hsv(211, 72%, 75%)
CMYK	cmyk(71.7%, 37.2%, 0%, 25.1%)
CIE-LAB	lab(49.47, 3.01, -43.27)
CIE-LCH	lch(49.47, 43.38, 273.97°)
OKLab	oklab(56.46% -0.0388 -0.1232)
OKLCH	oklch(56.46% 0.129 252.5)
XYZ	xyz(17.6383, 17.9769, 51.8204)
Luminance	0.1798 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3678BF #BF7D36

analogous

#36BCBF #3678BF #3936BF

triadic

#3678BF #BF3678 #78BF36

tetradic

#3678BF #BF36BC #BF7D36 #36BF39

square

#3678BF #BF36BC #BF7D36 #36BF39

split-complementary

#3678BF #BF3936 #BCBF36

monochromatic

#1B3C60 #295A8F #3678BF #6097D2 #90B6E0

Accessibility & contrast

On white

4.57

#3678BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#3678BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3678BF

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3678BF	#FFFFFF	#000000	##000000
##3678BF	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#587DC2

Deuteranopia (green-blind)

#4370BE

Tritanopia (blue-blind)

#008992

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3678bf;
/* rgb */ color: rgb(54, 120, 191);
/* oklch */ color: oklch(56.5% 0.129 252.5);

Tailwind

colors: {
  custom: {
    50: '#7e9ed2',
    500: '#3678bf',
    950: '#000000',
  },
}

SCSS

$custom: #3678bf;
$custom-light: #7e9ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#3678bf",
  "rgb": {
    "r": 54,
    "g": 120,
    "b": 191
  },
  "hsl": {
    "h": 211.095,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.56456,
    "c": 0.12912,
    "h": 252.5
  },
  "luminance": 0.17979
}

Semantic roles & 50–950 ramp

primary

#3678BF

secondary

#CAAA87

accent

#9749DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3678BF

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

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