#3B78BD#3B78BD

#3B78BD is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.5% C 0.125 H 253.3°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3B78BD
RGB	rgb(59, 120, 189)
HSL	hsl(212, 52%, 49%)
HSV	hsv(212, 69%, 74%)
CMYK	cmyk(68.8%, 36.5%, 0%, 25.9%)
CIE-LAB	lab(49.54, 3.04, -42.00)
CIE-LCH	lch(49.54, 42.11, 274.15°)
OKLab	oklab(56.53% -0.0359 -0.1194)
OKLCH	oklch(56.53% 0.125 253.3)
XYZ	xyz(17.7020, 18.0350, 50.6824)
Luminance	0.1804 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B78BD #BD803B

analogous

#3BB9BD #3B78BD #3F3BBD

triadic

#3B78BD #BD3B78 #78BD3B

tetradic

#3B78BD #BD3BB9 #BD803B #3BBD3F

square

#3B78BD #BD3BB9 #BD803B #3BBD3F

split-complementary

#3B78BD #BD3F3B #B9BD3B

monochromatic

#1E3D60 #2C5A8E #3B78BD #6697CF #95B7DE

Accessibility & contrast

On white

4.56

#3B78BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#3B78BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B78BD

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B78BD	#FFFFFF	#000000	##000000
##3B78BD	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#597CC0

Deuteranopia (green-blind)

#4670BC

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3b78bd;
/* rgb */ color: rgb(59, 120, 189);
/* oklch */ color: oklch(56.5% 0.125 253.3);

Tailwind

colors: {
  custom: {
    50: '#7f9ed1',
    500: '#3b78bd',
    950: '#000000',
  },
}

SCSS

$custom: #3b78bd;
$custom-light: #7f9ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#3b78bd",
  "rgb": {
    "r": 59,
    "g": 120,
    "b": 189
  },
  "hsl": {
    "h": 211.846,
    "s": 52.419,
    "l": 48.627
  },
  "oklch": {
    "l": 0.56526,
    "c": 0.12464,
    "h": 253.3
  },
  "luminance": 0.18037
}

Semantic roles & 50–950 ramp

primary

#3B78BD

secondary

#C9AC8B

accent

#984CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3B78BD

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

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