#2C3FB1#2C3FB1

#2C3FB1 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.0% C 0.181 H 269.6°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#2C3FB1
RGB	rgb(44, 63, 177)
HSL	hsl(231, 60%, 43%)
HSV	hsv(231, 75%, 69%)
CMYK	cmyk(75.1%, 64.4%, 0%, 30.6%)
CIE-LAB	lab(32.40, 33.18, -62.63)
CIE-LCH	lch(32.40, 70.87, 297.91°)
OKLab	oklab(43.04% -0.0014 -0.1811)
OKLCH	oklch(43.04% 0.181 269.6)
XYZ	xyz(10.7493, 7.2637, 42.4220)
Luminance	0.0727 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C3FB1 #B19E2C

analogous

#2C81B1 #2C3FB1 #5C2CB1

triadic

#2C3FB1 #B12C3F #3FB12C

tetradic

#2C3FB1 #B12C81 #B19E2C #2CB15C

square

#2C3FB1 #B12C81 #B19E2C #2CB15C

split-complementary

#2C3FB1 #B15C2C #81B12C

monochromatic

#141C4F #202E80 #2C3FB1 #495CD2 #7A88DE

Accessibility & contrast

On white

8.56

#2C3FB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#2C3FB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C3FB1

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C3FB1	#FFFFFF	#000000	##FFFFFF
##2C3FB1	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B5

Deuteranopia (green-blind)

#0046AF

Tritanopia (blue-blind)

#005D72

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2c3fb1;
/* rgb */ color: rgb(44, 63, 177);
/* oklch */ color: oklch(43.0% 0.181 269.6);

Tailwind

colors: {
  custom: {
    50: '#7a74c9',
    500: '#2c3fb1',
    950: '#000000',
  },
}

SCSS

$custom: #2c3fb1;
$custom-light: #7a74c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2c3fb1",
  "rgb": {
    "r": 44,
    "g": 63,
    "b": 177
  },
  "hsl": {
    "h": 231.429,
    "s": 60.181,
    "l": 43.333
  },
  "oklch": {
    "l": 0.43036,
    "c": 0.18108,
    "h": 269.6
  },
  "luminance": 0.07265
}

Semantic roles & 50–950 ramp

primary

#2C3FB1

secondary

#C6BA73

accent

#CD44E3

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2C3FB1

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

Preview Lab → · Contrast checker → · Palette generator →