#2B33A5#2B33A5

#2B33A5 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.7% C 0.180 H 271.9°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#2B33A5
RGB	rgb(43, 51, 165)
HSL	hsl(236, 59%, 41%)
HSV	hsv(236, 74%, 65%)
CMYK	cmyk(73.9%, 69.1%, 0%, 35.3%)
CIE-LAB	lab(28.37, 36.38, -62.05)
CIE-LCH	lch(28.37, 71.92, 300.38°)
OKLab	oklab(39.75% 0.0059 -0.1795)
OKLCH	oklch(39.75% 0.18 271.9)
XYZ	xyz(8.9693, 5.5969, 36.1976)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B33A5 #A59D2B

analogous

#2B70A5 #2B33A5 #602BA5

triadic

#2B33A5 #A52B33 #33A52B

tetradic

#2B33A5 #A52B70 #A59D2B #2BA560

square

#2B33A5 #A52B70 #A59D2B #2BA560

split-complementary

#2B33A5 #A5602B #70A52B

monochromatic

#121544 #1E2474 #2B33A5 #4049CD #7177DA

Accessibility & contrast

On white

9.91

#2B33A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#2B33A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B33A5

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B33A5	#FFFFFF	#000000	##FFFFFF
##2B33A5	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A8

Deuteranopia (green-blind)

#003DA3

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2b33a5;
/* rgb */ color: rgb(43, 51, 165);
/* oklch */ color: oklch(39.7% 0.180 271.9);

Tailwind

colors: {
  custom: {
    50: '#776bc1',
    500: '#2b33a5',
    950: '#000000',
  },
}

SCSS

$custom: #2b33a5;
$custom-light: #776bc1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b33a5",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 165
  },
  "hsl": {
    "h": 236.066,
    "s": 58.654,
    "l": 40.784
  },
  "oklch": {
    "l": 0.39745,
    "c": 0.17956,
    "h": 271.9
  },
  "luminance": 0.05598
}

Semantic roles & 50–950 ramp

primary

#2B33A5

secondary

#C1BB6B

accent

#D846E2

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2B33A5

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

Preview Lab → · Contrast checker → · Palette generator →