#2B33B4#2B33B4

#2B33B4 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.3% C 0.199 H 271.2°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#2B33B4
RGB	rgb(43, 51, 180)
HSL	hsl(236, 61%, 44%)
HSV	hsv(236, 76%, 71%)
CMYK	cmyk(76.1%, 71.7%, 0%, 29.4%)
CIE-LAB	lab(29.85, 41.64, -68.60)
CIE-LCH	lch(29.85, 80.25, 301.25°)
OKLab	oklab(41.26% 0.004 -0.1986)
OKLCH	oklch(41.26% 0.199 271.2)
XYZ	xyz(10.4155, 6.1754, 43.8142)
Luminance	0.0618 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B33B4 #B4AC2B

analogous

#2B77B4 #2B33B4 #672BB4

triadic

#2B33B4 #B42B33 #33B42B

tetradic

#2B33B4 #B42B77 #B4AC2B #2BB467

square

#2B33B4 #B42B77 #B4AC2B #2BB467

split-complementary

#2B33B4 #B4672B #77B42B

monochromatic

#131751 #1F2583 #2B33B4 #4951D3 #7A80DF

Accessibility & contrast

On white

9.39

#2B33B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#2B33B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B33B4

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B33B4	#FFFFFF	#000000	##FFFFFF
##2B33B4	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB8

Deuteranopia (green-blind)

#0040B2

Tritanopia (blue-blind)

#005770

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2b33b4;
/* rgb */ color: rgb(43, 51, 180);
/* oklch */ color: oklch(41.3% 0.199 271.2);

Tailwind

colors: {
  custom: {
    50: '#7b6ccc',
    500: '#2b33b4',
    950: '#000000',
  },
}

SCSS

$custom: #2b33b4;
$custom-light: #7b6ccc;
$custom-dark: #000000;

JSON

{
  "hex": "#2b33b4",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 180
  },
  "hsl": {
    "h": 236.496,
    "s": 61.435,
    "l": 43.725
  },
  "oklch": {
    "l": 0.41257,
    "c": 0.19863,
    "h": 271.2
  },
  "luminance": 0.06177
}

Semantic roles & 50–950 ramp

primary

#2B33B4

secondary

#C7C273

accent

#DB43E5

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2B33B4

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

Preview Lab → · Contrast checker → · Palette generator →