#2B33B8#2B33B8

#2B33B8 is a dark, highly saturated blue. Relative luminance 0.063; OKLCH L 41.7% C 0.204 H 271.0°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#2B33B8
RGB	rgb(43, 51, 184)
HSL	hsl(237, 62%, 45%)
HSV	hsv(237, 77%, 72%)
CMYK	cmyk(76.6%, 72.3%, 0%, 27.8%)
CIE-LAB	lab(30.26, 43.01, -70.31)
CIE-LCH	lch(30.26, 82.42, 301.46°)
OKLab	oklab(41.67% 0.0035 -0.2036)
OKLCH	oklch(41.67% 0.204 271)
XYZ	xyz(10.8289, 6.3408, 45.9913)
Luminance	0.0634 (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

#2B33B8 #B8B02B

analogous

#2B79B8 #2B33B8 #6A2BB8

triadic

#2B33B8 #B82B33 #33B82B

tetradic

#2B33B8 #B82B79 #B8B02B #2BB86A

square

#2B33B8 #B82B79 #B8B02B #2BB86A

split-complementary

#2B33B8 #B86A2B #79B82B

monochromatic

#141855 #1F2586 #2B33B8 #4B53D5 #7D82E1

Accessibility & contrast

On white

9.26

#2B33B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#2B33B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B33B8

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B33B8	#FFFFFF	#000000	##FFFFFF
##2B33B8	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBC

Deuteranopia (green-blind)

#0040B6

Tritanopia (blue-blind)

#005972

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2b33b8;
/* rgb */ color: rgb(43, 51, 184);
/* oklch */ color: oklch(41.7% 0.204 271.0);

Tailwind

colors: {
  custom: {
    50: '#7c6ccf',
    500: '#2b33b8',
    950: '#000000',
  },
}

SCSS

$custom: #2b33b8;
$custom-light: #7c6ccf;
$custom-dark: #000000;

JSON

{
  "hex": "#2b33b8",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 184
  },
  "hsl": {
    "h": 236.596,
    "s": 62.115,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41669,
    "c": 0.20359,
    "h": 271
  },
  "luminance": 0.06342
}

Semantic roles & 50–950 ramp

primary

#2B33B8

secondary

#C9C476

accent

#DC43E5

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2B33B8

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

Preview Lab → · Contrast checker → · Palette generator →