#2B33A7#2B33A7

#2B33A7 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.9% C 0.182 H 271.8°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#2B33A7
RGB	rgb(43, 51, 167)
HSL	hsl(236, 59%, 41%)
HSV	hsv(236, 74%, 65%)
CMYK	cmyk(74.3%, 69.5%, 0%, 34.5%)
CIE-LAB	lab(28.56, 37.09, -62.93)
CIE-LCH	lch(28.56, 73.05, 300.51°)
OKLab	oklab(39.94% 0.0057 -0.1821)
OKLCH	oklch(39.94% 0.182 271.8)
XYZ	xyz(9.1528, 5.6703, 37.1638)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B33A7 #A79F2B

analogous

#2B71A7 #2B33A7 #612BA7

triadic

#2B33A7 #A72B33 #33A72B

tetradic

#2B33A7 #A72B71 #A79F2B #2BA761

square

#2B33A7 #A72B71 #A79F2B #2BA761

split-complementary

#2B33A7 #A7612B #71A72B

monochromatic

#121546 #1E2476 #2B33A7 #414ACE #7279DB

Accessibility & contrast

On white

9.84

#2B33A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2B33A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B33A7

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B33A7	#FFFFFF	#000000	##FFFFFF
##2B33A7	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AB

Deuteranopia (green-blind)

#003DA5

Tritanopia (blue-blind)

#005369

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2b33a7;
/* rgb */ color: rgb(43, 51, 167);
/* oklch */ color: oklch(39.9% 0.182 271.8);

Tailwind

colors: {
  custom: {
    50: '#786bc2',
    500: '#2b33a7',
    950: '#000000',
  },
}

SCSS

$custom: #2b33a7;
$custom-light: #786bc2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b33a7",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 167
  },
  "hsl": {
    "h": 236.129,
    "s": 59.048,
    "l": 41.176
  },
  "oklch": {
    "l": 0.39944,
    "c": 0.18215,
    "h": 271.8
  },
  "luminance": 0.05671
}

Semantic roles & 50–950 ramp

primary

#2B33A7

secondary

#C2BC6C

accent

#D846E2

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2B33A7

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

Preview Lab → · Contrast checker → · Palette generator →