#2B33AA#2B33AA

#2B33AA is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.2% C 0.186 H 271.6°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#2B33AA
RGB	rgb(43, 51, 170)
HSL	hsl(236, 60%, 42%)
HSV	hsv(236, 75%, 67%)
CMYK	cmyk(74.7%, 70%, 0%, 33.3%)
CIE-LAB	lab(28.86, 38.15, -64.26)
CIE-LCH	lch(28.86, 74.73, 300.70°)
OKLab	oklab(40.24% 0.0053 -0.1859)
OKLCH	oklch(40.24% 0.186 271.6)
XYZ	xyz(9.4333, 5.7825, 38.6414)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.74

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B33AA #AAA22B

analogous

#2B73AA #2B33AA #622BAA

triadic

#2B33AA #AA2B33 #33AA2B

tetradic

#2B33AA #AA2B73 #AAA22B #2BAA62

square

#2B33AA #AA2B73 #AAA22B #2BAA62

split-complementary

#2B33AA #AA622B #73AA2B

monochromatic

#121648 #1F2479 #2B33AA #434CCF #747ADC

Accessibility & contrast

On white

9.74

#2B33AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2B33AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B33AA

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B33AA	#FFFFFF	#000000	##FFFFFF
##2B33AA	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAE

Deuteranopia (green-blind)

#003EA8

Tritanopia (blue-blind)

#00546A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2b33aa;
/* rgb */ color: rgb(43, 51, 170);
/* oklch */ color: oklch(40.2% 0.186 271.6);

Tailwind

colors: {
  custom: {
    50: '#796bc4',
    500: '#2b33aa',
    950: '#000000',
  },
}

SCSS

$custom: #2b33aa;
$custom-light: #796bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b33aa",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 170
  },
  "hsl": {
    "h": 236.22,
    "s": 59.624,
    "l": 41.765
  },
  "oklch": {
    "l": 0.40243,
    "c": 0.186,
    "h": 271.6
  },
  "luminance": 0.05784
}

Semantic roles & 50–950 ramp

primary

#2B33AA

secondary

#C3BE6E

accent

#D945E3

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2B33AA

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

Preview Lab → · Contrast checker → · Palette generator →