#4878EF#4878EF

#4878EF is a mid, vivid blue. Relative luminance 0.210; OKLCH L 60.3% C 0.187 H 264.8°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#4878EF
RGB	rgb(72, 120, 239)
HSL	hsl(223, 84%, 61%)
HSV	hsv(223, 70%, 94%)
CMYK	cmyk(69.9%, 49.8%, 0%, 6.3%)
CIE-LAB	lab(52.99, 22.82, -64.76)
CIE-LCH	lch(52.99, 68.66, 289.41°)
OKLab	oklab(60.28% -0.0169 -0.186)
OKLCH	oklch(60.28% 0.187 264.8)
XYZ	xyz(24.9635, 21.0401, 84.3901)
Luminance	0.2104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4878EF #EFBF48

analogous

#48CCEF #4878EF #6B48EF

triadic

#4878EF #EF4878 #78EF48

tetradic

#4878EF #EF48CC #EFBF48 #48EF6B

square

#4878EF #EF48CC #EFBF48 #48EF6B

split-complementary

#4878EF #EF6B48 #CCEF48

monochromatic

#0F3DAD #1450E6 #4878EF #80A2F4 #B9CBF9

Accessibility & contrast

On white

4.03

#4878EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#4878EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4878EF

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4878EF	#FFFFFF	#000000	##000000
##4878EF	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3187F3

Deuteranopia (green-blind)

#0077ED

Tritanopia (blue-blind)

#0094A8

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4878ef;
/* rgb */ color: rgb(72, 120, 239);
/* oklch */ color: oklch(60.3% 0.187 264.8);

Tailwind

colors: {
  custom: {
    50: '#8e9ef5',
    500: '#4878ef',
    950: '#000000',
  },
}

SCSS

$custom: #4878ef;
$custom-light: #8e9ef5;
$custom-dark: #000000;

JSON

{
  "hex": "#4878ef",
  "rgb": {
    "r": 72,
    "g": 120,
    "b": 239
  },
  "hsl": {
    "h": 222.754,
    "s": 83.92,
    "l": 60.98
  },
  "oklch": {
    "l": 0.60281,
    "c": 0.18679,
    "h": 264.8
  },
  "luminance": 0.21043
}

Semantic roles & 50–950 ramp

primary

#4878EF

secondary

#E9D7AA

accent

#A105E0

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #4878EF

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

Preview Lab → · Contrast checker → · Palette generator →