#4378BE#4378BE

#4378BE is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 56.9% C 0.123 H 256.1°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#4378BE
RGB	rgb(67, 120, 190)
HSL	hsl(214, 49%, 50%)
HSV	hsv(214, 65%, 75%)
CMYK	cmyk(64.7%, 36.8%, 0%, 25.5%)
CIE-LAB	lab(49.91, 4.75, -41.97)
CIE-LCH	lch(49.91, 42.24, 276.45°)
OKLab	oklab(56.92% -0.0296 -0.1192)
OKLCH	oklch(56.92% 0.123 256.1)
XYZ	xyz(18.3221, 18.3422, 51.2800)
Luminance	0.1834 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4378BE #BE8943

analogous

#43B6BE #4378BE #4B43BE

triadic

#4378BE #BE4378 #78BE43

tetradic

#4378BE #BE43B6 #BE8943 #43BE4B

square

#4378BE #BE43B6 #BE8943 #43BE4B

split-complementary

#4378BE #BE4B43 #B6BE43

monochromatic

#233F64 #325B91 #4378BE #7099CE #9EB9DD

Accessibility & contrast

On white

4.50

#4378BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#4378BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4378BE

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4378BE	#FFFFFF	#000000	##000000
##4378BE	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)

#597DC1

Deuteranopia (green-blind)

#4871BD

Tritanopia (blue-blind)

#008892

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4378be;
/* rgb */ color: rgb(67, 120, 190);
/* oklch */ color: oklch(56.9% 0.123 256.1);

Tailwind

colors: {
  custom: {
    50: '#839ed2',
    500: '#4378be',
    950: '#000000',
  },
}

SCSS

$custom: #4378be;
$custom-light: #839ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#4378be",
  "rgb": {
    "r": 67,
    "g": 120,
    "b": 190
  },
  "hsl": {
    "h": 214.146,
    "s": 48.617,
    "l": 50.392
  },
  "oklch": {
    "l": 0.5692,
    "c": 0.12278,
    "h": 256.1
  },
  "luminance": 0.18344
}

Semantic roles & 50–950 ramp

primary

#4378BE

secondary

#CAB293

accent

#9D50D8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4378BE

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

Preview Lab → · Contrast checker → · Palette generator →