#3378C9#3378C9

#3378C9 is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 57.0% C 0.143 H 254.5°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#3378C9
RGB	rgb(51, 120, 201)
HSL	hsl(212, 60%, 49%)
HSV	hsv(212, 75%, 79%)
CMYK	cmyk(74.6%, 40.3%, 0%, 21.2%)
CIE-LAB	lab(49.92, 6.26, -48.29)
CIE-LCH	lch(49.92, 48.70, 277.38°)
OKLab	oklab(56.96% -0.0383 -0.1379)
OKLCH	oklch(56.96% 0.143 254.5)
XYZ	xyz(18.6204, 18.3517, 57.8079)
Luminance	0.1835 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3378C9 #C98433

analogous

#33C3C9 #3378C9 #3933C9

triadic

#3378C9 #C93378 #78C933

tetradic

#3378C9 #C933C3 #C98433 #33C939

square

#3378C9 #C933C3 #C98433 #33C939

split-complementary

#3378C9 #C93933 #C3C933

monochromatic

#1A3E67 #275B98 #3378C9 #6298D7 #93B8E4

Accessibility & contrast

On white

4.50

#3378C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#3378C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3378C9

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3378C9	#FFFFFF	#000000	##000000
##3378C9	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517ECC

Deuteranopia (green-blind)

#3970C7

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3378c9;
/* rgb */ color: rgb(51, 120, 201);
/* oklch */ color: oklch(57.0% 0.143 254.5);

Tailwind

colors: {
  custom: {
    50: '#7f9eda',
    500: '#3378c9',
    950: '#000000',
  },
}

SCSS

$custom: #3378c9;
$custom-light: #7f9eda;
$custom-dark: #000000;

JSON

{
  "hex": "#3378c9",
  "rgb": {
    "r": 51,
    "g": 120,
    "b": 201
  },
  "hsl": {
    "h": 212.4,
    "s": 59.524,
    "l": 49.412
  },
  "oklch": {
    "l": 0.5696,
    "c": 0.14312,
    "h": 254.5
  },
  "luminance": 0.18354
}

Semantic roles & 50–950 ramp

primary

#3378C9

secondary

#CFAF89

accent

#9A45E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #3378C9

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

Preview Lab → · Contrast checker → · Palette generator →