#4E51BC#4E51BC

#4E51BC is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.3% C 0.165 H 277.3°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#4E51BC
RGB	rgb(78, 81, 188)
HSL	hsl(238, 45%, 52%)
HSV	hsv(238, 59%, 74%)
CMYK	cmyk(58.5%, 56.9%, 0%, 26.3%)
CIE-LAB	lab(39.81, 30.61, -56.96)
CIE-LCH	lch(39.81, 64.66, 298.25°)
OKLab	oklab(49.33% 0.0209 -0.1634)
OKLCH	oklch(49.33% 0.165 277.3)
XYZ	xyz(15.1585, 11.1343, 48.9175)
Luminance	0.1114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E51BC #BCB94E

analogous

#4E88BC #4E51BC #824EBC

triadic

#4E51BC #BC4E51 #51BC4E

tetradic

#4E51BC #BC4E88 #BCB94E #4EBC82

square

#4E51BC #BC4E88 #BCB94E #4EBC82

split-complementary

#4E51BC #BC824E #88BC4E

monochromatic

#272968 #383B95 #4E51BC #7A7DCD #A7A8DE

Accessibility & contrast

On white

6.51

#4E51BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#4E51BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E51BC

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E51BC	#FFFFFF	#000000	##FFFFFF
##4E51BC	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C0

Deuteranopia (green-blind)

#0059BA

Tritanopia (blue-blind)

#006A7E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #4e51bc;
/* rgb */ color: rgb(78, 81, 188);
/* oklch */ color: oklch(49.3% 0.165 277.3);

Tailwind

colors: {
  custom: {
    50: '#8a82d1',
    500: '#4e51bc',
    950: '#000000',
  },
}

SCSS

$custom: #4e51bc;
$custom-light: #8a82d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4e51bc",
  "rgb": {
    "r": 78,
    "g": 81,
    "b": 188
  },
  "hsl": {
    "h": 238.364,
    "s": 45.082,
    "l": 52.157
  },
  "oklch": {
    "l": 0.49331,
    "c": 0.16476,
    "h": 277.3
  },
  "luminance": 0.11135
}

Semantic roles & 50–950 ramp

primary

#4E51BC

secondary

#CBCA9B

accent

#D153D5

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0D0A14

muted

#7D7C82

Preview Lab

Preview with #4E51BC

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

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