#2E51BC#2E51BC

#2E51BC is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.5% C 0.173 H 266.1°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#2E51BC
RGB	rgb(46, 81, 188)
HSL	hsl(225, 61%, 46%)
HSV	hsv(225, 76%, 74%)
CMYK	cmyk(75.5%, 56.9%, 0%, 26.3%)
CIE-LAB	lab(38.01, 25.74, -59.95)
CIE-LCH	lch(38.01, 65.25, 293.24°)
OKLab	oklab(47.51% -0.0118 -0.173)
OKLCH	oklch(47.51% 0.173 266.1)
XYZ	xyz(13.1431, 10.0951, 48.8231)
Luminance	0.1010 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2E51BC #BC992E

analogous

#2E98BC #2E51BC #522EBC

triadic

#2E51BC #BC2E51 #51BC2E

tetradic

#2E51BC #BC2E98 #BC992E #2EBC52

square

#2E51BC #BC2E98 #BC992E #2EBC52

split-complementary

#2E51BC #BC522E #98BC2E

monochromatic

#16275A #223C8B #2E51BC #5273D5 #849BE1

Accessibility & contrast

On white

6.96

#2E51BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#2E51BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2E51BC

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2E51BC	#FFFFFF	#000000	##FFFFFF
##2E51BC	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060C0

Deuteranopia (green-blind)

#0053BA

Tritanopia (blue-blind)

#006C7E

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2e51bc;
/* rgb */ color: rgb(46, 81, 188);
/* oklch */ color: oklch(47.5% 0.173 266.1);

Tailwind

colors: {
  custom: {
    50: '#7b81d1',
    500: '#2e51bc',
    950: '#000000',
  },
}

SCSS

$custom: #2e51bc;
$custom-light: #7b81d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2e51bc",
  "rgb": {
    "r": 46,
    "g": 81,
    "b": 188
  },
  "hsl": {
    "h": 225.211,
    "s": 60.684,
    "l": 45.882
  },
  "oklch": {
    "l": 0.47514,
    "c": 0.17338,
    "h": 266.1
  },
  "luminance": 0.10097
}

Semantic roles & 50–950 ramp

primary

#2E51BC

secondary

#CAB77C

accent

#BC44E4

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2E51BC

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

Preview Lab → · Contrast checker → · Palette generator →