#2B33B7#2B33B7

#2B33B7 is a dark, highly saturated blue. Relative luminance 0.063; OKLCH L 41.6% C 0.202 H 271.0°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#2B33B7
RGB	rgb(43, 51, 183)
HSL	hsl(237, 62%, 44%)
HSV	hsv(237, 77%, 72%)
CMYK	cmyk(76.5%, 72.1%, 0%, 28.2%)
CIE-LAB	lab(30.15, 42.67, -69.88)
CIE-LCH	lch(30.15, 81.88, 301.41°)
OKLab	oklab(41.57% 0.0036 -0.2023)
OKLCH	oklch(41.57% 0.202 271)
XYZ	xyz(10.7244, 6.2990, 45.4412)
Luminance	0.0630 (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

#2B33B7 #B7AF2B

analogous

#2B79B7 #2B33B7 #692BB7

triadic

#2B33B7 #B72B33 #33B72B

tetradic

#2B33B7 #B72B79 #B7AF2B #2BB769

square

#2B33B7 #B72B79 #B7AF2B #2BB769

split-complementary

#2B33B7 #B7692B #79B72B

monochromatic

#141754 #1F2585 #2B33B7 #4B52D5 #7C82E0

Accessibility & contrast

On white

9.29

#2B33B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#2B33B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B33B7

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B33B7	#FFFFFF	#000000	##FFFFFF
##2B33B7	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBB

Deuteranopia (green-blind)

#0040B5

Tritanopia (blue-blind)

#005972

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2b33b7;
/* rgb */ color: rgb(43, 51, 183);
/* oklch */ color: oklch(41.6% 0.202 271.0);

Tailwind

colors: {
  custom: {
    50: '#7c6cce',
    500: '#2b33b7',
    950: '#000000',
  },
}

SCSS

$custom: #2b33b7;
$custom-light: #7c6cce;
$custom-dark: #000000;

JSON

{
  "hex": "#2b33b7",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 183
  },
  "hsl": {
    "h": 236.571,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.41566,
    "c": 0.20235,
    "h": 271
  },
  "luminance": 0.063
}

Semantic roles & 50–950 ramp

primary

#2B33B7

secondary

#C9C475

accent

#DC43E5

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2B33B7

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

Preview Lab → · Contrast checker → · Palette generator →