#2D33A8#2D33A8

#2D33A8 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.2% C 0.183 H 272.4°. Best body text is #FFFFFF at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#2D33A8
RGB	rgb(45, 51, 168)
HSL	hsl(237, 58%, 42%)
HSV	hsv(237, 73%, 66%)
CMYK	cmyk(73.2%, 69.6%, 0%, 34.1%)
CIE-LAB	lab(28.78, 37.66, -63.18)
CIE-LCH	lch(28.78, 73.55, 300.79°)
OKLab	oklab(40.16% 0.0078 -0.1827)
OKLCH	oklch(40.16% 0.183 272.4)
XYZ	xyz(9.3315, 5.7517, 37.6566)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.80

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D33A8 #A8A22D

analogous

#2D71A8 #2D33A8 #652DA8

triadic

#2D33A8 #A82D33 #33A82D

tetradic

#2D33A8 #A82D71 #A8A22D #2DA865

square

#2D33A8 #A82D71 #A8A22D #2DA865

split-complementary

#2D33A8 #A8652D #71A82D

monochromatic

#131647 #202478 #2D33A8 #454CCD #757ADA

Accessibility & contrast

On white

9.76

#2D33A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#2D33A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D33A8

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D33A8	#FFFFFF	#000000	##FFFFFF
##2D33A8	1.00	9.76	2.15	9.76
#FFFFFF	9.76	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAC

Deuteranopia (green-blind)

#003EA6

Tritanopia (blue-blind)

#005369

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2d33a8;
/* rgb */ color: rgb(45, 51, 168);
/* oklch */ color: oklch(40.2% 0.183 272.4);

Tailwind

colors: {
  custom: {
    50: '#796bc3',
    500: '#2d33a8',
    950: '#000000',
  },
}

SCSS

$custom: #2d33a8;
$custom-light: #796bc3;
$custom-dark: #000000;

JSON

{
  "hex": "#2d33a8",
  "rgb": {
    "r": 45,
    "g": 51,
    "b": 168
  },
  "hsl": {
    "h": 237.073,
    "s": 57.746,
    "l": 41.765
  },
  "oklch": {
    "l": 0.40157,
    "c": 0.18291,
    "h": 272.4
  },
  "luminance": 0.05753
}

Semantic roles & 50–950 ramp

primary

#2D33A8

secondary

#C2BE6F

accent

#D947E1

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2D33A8

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

Preview Lab → · Contrast checker → · Palette generator →