#4E78B4#4E78B4

#4E78B4 is a mid, moderate blue. Relative luminance 0.183; OKLCH L 56.9% C 0.105 H 257.4°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#4E78B4
RGB	rgb(78, 120, 180)
HSL	hsl(215, 40%, 51%)
HSV	hsv(215, 57%, 71%)
CMYK	cmyk(56.7%, 33.3%, 0%, 29.4%)
CIE-LAB	lab(49.91, 3.52, -36.16)
CIE-LCH	lch(49.91, 36.33, 275.56°)
OKLab	oklab(56.9% -0.0229 -0.102)
OKLCH	oklch(56.9% 0.105 257.4)
XYZ	xyz(18.0937, 18.3464, 45.7589)
Luminance	0.1835 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E78B4 #B48A4E

analogous

#4EABB4 #4E78B4 #574EB4

triadic

#4E78B4 #B44E78 #78B44E

tetradic

#4E78B4 #B44EAB #B48A4E #4EB457

square

#4E78B4 #B44EAB #B48A4E #4EB457

split-complementary

#4E78B4 #B4574E #ABB44E

monochromatic

#283F5F #3B5B8A #4E78B4 #7999C6 #A4BAD8

Accessibility & contrast

On white

4.50

#4E78B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#4E78B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E78B4

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E78B4	#FFFFFF	#000000	##000000
##4E78B4	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)

#607CB7

Deuteranopia (green-blind)

#5372B3

Tritanopia (blue-blind)

#00858E

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4e78b4;
/* rgb */ color: rgb(78, 120, 180);
/* oklch */ color: oklch(56.9% 0.105 257.4);

Tailwind

colors: {
  custom: {
    50: '#879eca',
    500: '#4e78b4',
    950: '#000000',
  },
}

SCSS

$custom: #4e78b4;
$custom-light: #879eca;
$custom-dark: #000000;

JSON

{
  "hex": "#4e78b4",
  "rgb": {
    "r": 78,
    "g": 120,
    "b": 180
  },
  "hsl": {
    "h": 215.294,
    "s": 40.476,
    "l": 50.588
  },
  "oklch": {
    "l": 0.56898,
    "c": 0.10459,
    "h": 257.4
  },
  "luminance": 0.18348
}

Semantic roles & 50–950 ramp

primary

#4E78B4

secondary

#C6B398

accent

#9F57D0

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #4E78B4

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

Preview Lab → · Contrast checker → · Palette generator →