#4F78B2#4F78B2

#4F78B2 is a mid, moderate blue. Relative luminance 0.183; OKLCH L 56.8% C 0.101 H 257.2°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4F78B2
RGB	rgb(79, 120, 178)
HSL	hsl(215, 39%, 50%)
HSV	hsv(215, 56%, 70%)
CMYK	cmyk(55.6%, 32.6%, 0%, 30.2%)
CIE-LAB	lab(49.87, 3.08, -35.08)
CIE-LCH	lch(49.87, 35.21, 275.02°)
OKLab	oklab(56.84% -0.0225 -0.0989)
OKLCH	oklch(56.84% 0.101 257.2)
XYZ	xyz(17.9740, 18.3081, 44.6975)
Luminance	0.1831 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F78B2 #B2894F

analogous

#4FA9B2 #4F78B2 #584FB2

triadic

#4F78B2 #B24F78 #78B24F

tetradic

#4F78B2 #B24FA9 #B2894F #4FB258

square

#4F78B2 #B24FA9 #B2894F #4FB258

split-complementary

#4F78B2 #B2584F #A9B24F

monochromatic

#293F5E #3C5B88 #4F78B2 #7A99C5 #A4B9D7

Accessibility & contrast

On white

4.50

#4F78B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#4F78B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F78B2

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F78B2	#FFFFFF	#000000	##000000
##4F78B2	1.00	4.50	4.66	4.66
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#617CB4

Deuteranopia (green-blind)

#5472B1

Tritanopia (blue-blind)

#0D858D

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4f78b2;
/* rgb */ color: rgb(79, 120, 178);
/* oklch */ color: oklch(56.8% 0.101 257.2);

Tailwind

colors: {
  custom: {
    50: '#879ec9',
    500: '#4f78b2',
    950: '#000000',
  },
}

SCSS

$custom: #4f78b2;
$custom-light: #879ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#4f78b2",
  "rgb": {
    "r": 79,
    "g": 120,
    "b": 178
  },
  "hsl": {
    "h": 215.152,
    "s": 39.13,
    "l": 50.392
  },
  "oklch": {
    "l": 0.56844,
    "c": 0.10141,
    "h": 257.2
  },
  "luminance": 0.1831
}

Semantic roles & 50–950 ramp

primary

#4F78B2

secondary

#C4B298

accent

#9E59CF

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #4F78B2

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

Preview Lab → · Contrast checker → · Palette generator →