#3C78BC#3C78BC

#3C78BC is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.5% C 0.123 H 253.3°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3C78BC
RGB	rgb(60, 120, 188)
HSL	hsl(212, 52%, 49%)
HSV	hsv(212, 68%, 74%)
CMYK	cmyk(68.1%, 36.2%, 0%, 26.3%)
CIE-LAB	lab(49.52, 2.85, -41.45)
CIE-LCH	lch(49.52, 41.55, 273.93°)
OKLab	oklab(56.51% -0.0354 -0.1177)
OKLCH	oklch(56.51% 0.123 253.3)
XYZ	xyz(17.6537, 18.0226, 50.1155)
Luminance	0.1802 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C78BC #BC803C

analogous

#3CB8BC #3C78BC #403CBC

triadic

#3C78BC #BC3C78 #78BC3C

tetradic

#3C78BC #BC3CB8 #BC803C #3CBC40

square

#3C78BC #BC3CB8 #BC803C #3CBC40

split-complementary

#3C78BC #BC403C #B8BC3C

monochromatic

#1E3D5F #2D5A8E #3C78BC #6797CE #95B7DD

Accessibility & contrast

On white

4.56

#3C78BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#3C78BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3C78BC

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C78BC	#FFFFFF	#000000	##000000
##3C78BC	1.00	4.56	4.60	4.60
#FFFFFF	4.56	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)

#5A7CBF

Deuteranopia (green-blind)

#4770BB

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3c78bc;
/* rgb */ color: rgb(60, 120, 188);
/* oklch */ color: oklch(56.5% 0.123 253.3);

Tailwind

colors: {
  custom: {
    50: '#809ed0',
    500: '#3c78bc',
    950: '#000000',
  },
}

SCSS

$custom: #3c78bc;
$custom-light: #809ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#3c78bc",
  "rgb": {
    "r": 60,
    "g": 120,
    "b": 188
  },
  "hsl": {
    "h": 211.875,
    "s": 51.613,
    "l": 48.627
  },
  "oklch": {
    "l": 0.56508,
    "c": 0.12294,
    "h": 253.3
  },
  "luminance": 0.18024
}

Semantic roles & 50–950 ramp

primary

#3C78BC

secondary

#C9AC8B

accent

#984DDB

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3C78BC

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

Preview Lab → · Contrast checker → · Palette generator →