#4078B7#4078B7

#4078B7 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.4% C 0.115 H 252.9°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#4078B7
RGB	rgb(64, 120, 183)
HSL	hsl(212, 48%, 48%)
HSV	hsv(212, 65%, 72%)
CMYK	cmyk(65%, 34.4%, 0%, 28.2%)
CIE-LAB	lab(49.42, 1.77, -38.71)
CIE-LCH	lch(49.42, 38.75, 272.62°)
OKLab	oklab(56.39% -0.0337 -0.1097)
OKLCH	oklch(56.39% 0.115 252.9)
XYZ	xyz(17.3749, 17.9401, 47.3377)
Luminance	0.1794 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4078B7 #B77F40

analogous

#40B3B7 #4078B7 #4440B7

triadic

#4078B7 #B74078 #78B740

tetradic

#4078B7 #B740B3 #B77F40 #40B744

square

#4078B7 #B740B3 #B77F40 #40B744

split-complementary

#4078B7 #B74440 #B3B740

monochromatic

#203D5C #305A8A #4078B7 #6997CB #97B7DB

Accessibility & contrast

On white

4.58

#4078B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#4078B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4078B7

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4078B7	#FFFFFF	#000000	##000000
##4078B7	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7CBA

Deuteranopia (green-blind)

#4C70B6

Tritanopia (blue-blind)

#00878F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4078b7;
/* rgb */ color: rgb(64, 120, 183);
/* oklch */ color: oklch(56.4% 0.115 252.9);

Tailwind

colors: {
  custom: {
    50: '#819ecd',
    500: '#4078b7',
    950: '#000000',
  },
}

SCSS

$custom: #4078b7;
$custom-light: #819ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#4078b7",
  "rgb": {
    "r": 64,
    "g": 120,
    "b": 183
  },
  "hsl": {
    "h": 211.765,
    "s": 48.178,
    "l": 48.431
  },
  "oklch": {
    "l": 0.56389,
    "c": 0.11476,
    "h": 252.9
  },
  "luminance": 0.17942
}

Semantic roles & 50–950 ramp

primary

#4078B7

secondary

#C6AB8D

accent

#9850D8

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4078B7

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

Preview Lab → · Contrast checker → · Palette generator →