#4D51D7#4D51D7

#4D51D7 is a mid, highly saturated blue. Relative luminance 0.124; OKLCH L 51.4% C 0.201 H 275.4°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#4D51D7
RGB	rgb(77, 81, 215)
HSL	hsl(238, 63%, 57%)
HSV	hsv(238, 64%, 84%)
CMYK	cmyk(64.2%, 62.3%, 0%, 15.7%)
CIE-LAB	lab(41.79, 39.42, -69.36)
CIE-LCH	lch(41.79, 79.78, 299.61°)
OKLab	oklab(51.43% 0.0191 -0.1999)
OKLCH	oklch(51.43% 0.201 275.4)
XYZ	xyz(18.2647, 12.3674, 65.7014)
Luminance	0.1237 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D51D7 #D7D34D

analogous

#4D96D7 #4D51D7 #8E4DD7

triadic

#4D51D7 #D74D51 #51D74D

tetradic

#4D51D7 #D74D96 #D7D34D #4DD78E

square

#4D51D7 #D74D96 #D7D34D #4DD78E

split-complementary

#4D51D7 #D78E4D #96D74D

monochromatic

#1F228A #2A2FBC #4D51D7 #7F82E2 #B1B3ED

Accessibility & contrast

On white

6.05

#4D51D7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#4D51D7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D51D7

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D51D7	#FFFFFF	#000000	##FFFFFF
##4D51D7	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069DB

Deuteranopia (green-blind)

#005DD4

Tritanopia (blue-blind)

#00738C

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4d51d7;
/* rgb */ color: rgb(77, 81, 215);
/* oklch */ color: oklch(51.4% 0.201 275.4);

Tailwind

colors: {
  custom: {
    50: '#8e82e4',
    500: '#4d51d7',
    950: '#000000',
  },
}

SCSS

$custom: #4d51d7;
$custom-light: #8e82e4;
$custom-dark: #000000;

JSON

{
  "hex": "#4d51d7",
  "rgb": {
    "r": 77,
    "g": 81,
    "b": 215
  },
  "hsl": {
    "h": 238.261,
    "s": 63.303,
    "l": 57.255
  },
  "oklch": {
    "l": 0.51426,
    "c": 0.20081,
    "h": 275.4
  },
  "luminance": 0.12369
}

Semantic roles & 50–950 ramp

primary

#4D51D7

secondary

#DCDAA4

accent

#E241E6

background

#F9F8FE

surface

#F2EFFC

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4D51D7

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

Preview Lab → · Contrast checker → · Palette generator →