#2E51B9#2E51B9

#2E51B9 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.3% C 0.169 H 266.0°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#2E51B9
RGB	rgb(46, 81, 185)
HSL	hsl(225, 60%, 45%)
HSV	hsv(225, 75%, 73%)
CMYK	cmyk(75.1%, 56.2%, 0%, 27.5%)
CIE-LAB	lab(37.78, 24.62, -58.57)
CIE-LCH	lch(37.78, 63.53, 292.80°)
OKLab	oklab(47.27% -0.0119 -0.1689)
OKLCH	oklch(47.27% 0.169 266)
XYZ	xyz(12.8230, 9.9671, 47.1376)
Luminance	0.0997 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2E51B9 #B9962E

analogous

#2E96B9 #2E51B9 #502EB9

triadic

#2E51B9 #B92E51 #51B92E

tetradic

#2E51B9 #B92E96 #B9962E #2EB950

square

#2E51B9 #B92E96 #B9962E #2EB950

split-complementary

#2E51B9 #B9502E #96B92E

monochromatic

#162657 #223C88 #2E51B9 #5172D4 #8299E0

Accessibility & contrast

On white

7.01

#2E51B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#2E51B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2E51B9

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2E51B9	#FFFFFF	#000000	##FFFFFF
##2E51B9	1.00	7.01	2.99	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BD

Deuteranopia (green-blind)

#0053B7

Tritanopia (blue-blind)

#006B7D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2e51b9;
/* rgb */ color: rgb(46, 81, 185);
/* oklch */ color: oklch(47.3% 0.169 266.0);

Tailwind

colors: {
  custom: {
    50: '#7b81cf',
    500: '#2e51b9',
    950: '#000000',
  },
}

SCSS

$custom: #2e51b9;
$custom-light: #7b81cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2e51b9",
  "rgb": {
    "r": 46,
    "g": 81,
    "b": 185
  },
  "hsl": {
    "h": 224.892,
    "s": 60.173,
    "l": 45.294
  },
  "oklch": {
    "l": 0.4727,
    "c": 0.16932,
    "h": 266
  },
  "luminance": 0.09968
}

Semantic roles & 50–950 ramp

primary

#2E51B9

secondary

#C9B57A

accent

#BB44E3

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2E51B9

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

Preview Lab → · Contrast checker → · Palette generator →