#2B33A2#2B33A2

#2B33A2 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.5% C 0.176 H 272.0°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#2B33A2
RGB	rgb(43, 51, 162)
HSL	hsl(236, 58%, 40%)
HSV	hsv(236, 73%, 64%)
CMYK	cmyk(73.5%, 68.5%, 0%, 36.5%)
CIE-LAB	lab(28.08, 35.31, -60.70)
CIE-LCH	lch(28.08, 70.23, 300.19°)
OKLab	oklab(39.45% 0.0062 -0.1755)
OKLCH	oklch(39.45% 0.176 272)
XYZ	xyz(8.6995, 5.4890, 34.7764)
Luminance	0.0549 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B33A2 #A29A2B

analogous

#2B6FA2 #2B33A2 #5E2BA2

triadic

#2B33A2 #A22B33 #33A22B

tetradic

#2B33A2 #A22B6F #A29A2B #2BA25E

square

#2B33A2 #A22B6F #A29A2B #2BA25E

split-complementary

#2B33A2 #A25E2B #6FA22B

monochromatic

#111541 #1E2472 #2B33A2 #3E48CC #6F76D9

Accessibility & contrast

On white

10.01

#2B33A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#2B33A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B33A2

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B33A2	#FFFFFF	#000000	##FFFFFF
##2B33A2	1.00	10.01	2.10	10.01
#FFFFFF	10.01	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A5

Deuteranopia (green-blind)

#003DA0

Tritanopia (blue-blind)

#005166

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2b33a2;
/* rgb */ color: rgb(43, 51, 162);
/* oklch */ color: oklch(39.5% 0.176 272.0);

Tailwind

colors: {
  custom: {
    50: '#776bbf',
    500: '#2b33a2',
    950: '#000000',
  },
}

SCSS

$custom: #2b33a2;
$custom-light: #776bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#2b33a2",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 162
  },
  "hsl": {
    "h": 235.966,
    "s": 58.049,
    "l": 40.196
  },
  "oklch": {
    "l": 0.3945,
    "c": 0.17565,
    "h": 272
  },
  "luminance": 0.0549
}

Semantic roles & 50–950 ramp

primary

#2B33A2

secondary

#C0BA69

accent

#D747E1

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2B33A2

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

Preview Lab → · Contrast checker → · Palette generator →