#4E57AB#4E57AB

#4E57AB is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.3% C 0.133 H 275.8°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#4E57AB
RGB	rgb(78, 87, 171)
HSL	hsl(234, 37%, 49%)
HSV	hsv(234, 54%, 67%)
CMYK	cmyk(54.4%, 49.1%, 0%, 32.9%)
CIE-LAB	lab(40.21, 21.15, -46.31)
CIE-LCH	lch(40.21, 50.92, 294.55°)
OKLab	oklab(49.27% 0.0134 -0.1321)
OKLCH	oklch(49.27% 0.133 275.8)
XYZ	xyz(13.8984, 11.3754, 39.9835)
Luminance	0.1138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E57AB #ABA24E

analogous

#4E86AB #4E57AB #744EAB

triadic

#4E57AB #AB4E57 #57AB4E

tetradic

#4E57AB #AB4E86 #ABA24E #4EAB74

square

#4E57AB #AB4E86 #ABA24E #4EAB74

split-complementary

#4E57AB #AB744E #86AB4E

monochromatic

#282C57 #3B4281 #4E57AB #767DC0 #A0A5D4

Accessibility & contrast

On white

6.41

#4E57AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#4E57AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E57AB

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E57AB	#FFFFFF	#000000	##FFFFFF
##4E57AB	1.00	6.41	3.28	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F63AE

Deuteranopia (green-blind)

#235BA9

Tritanopia (blue-blind)

#216A79

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4e57ab;
/* rgb */ color: rgb(78, 87, 171);
/* oklch */ color: oklch(49.3% 0.133 275.8);

Tailwind

colors: {
  custom: {
    50: '#8786c4',
    500: '#4e57ab',
    950: '#000000',
  },
}

SCSS

$custom: #4e57ab;
$custom-light: #8786c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4e57ab",
  "rgb": {
    "r": 78,
    "g": 87,
    "b": 171
  },
  "hsl": {
    "h": 234.194,
    "s": 37.349,
    "l": 48.824
  },
  "oklch": {
    "l": 0.49266,
    "c": 0.13274,
    "h": 275.8
  },
  "luminance": 0.11376
}

Semantic roles & 50–950 ramp

primary

#4E57AB

secondary

#C1BC94

accent

#C25ACD

background

#F8F8FC

surface

#F0EFF8

border

#CBCAD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #4E57AB

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

Preview Lab → · Contrast checker → · Palette generator →