#2133A5#2133A5

#2133A5 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.2% C 0.182 H 268.7°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#2133A5
RGB	rgb(33, 51, 165)
HSL	hsl(232, 67%, 39%)
HSV	hsv(232, 80%, 65%)
CMYK	cmyk(80%, 69.1%, 0%, 35.3%)
CIE-LAB	lab(27.86, 35.41, -62.90)
CIE-LCH	lch(27.86, 72.18, 299.37°)
OKLab	oklab(39.24% -0.0043 -0.1822)
OKLCH	oklch(39.24% 0.182 268.7)
XYZ	xyz(8.6002, 5.4066, 36.1803)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2133A5 #A59321

analogous

#2175A5 #2133A5 #5121A5

triadic

#2133A5 #A52133 #33A521

tetradic

#2133A5 #A52175 #A59321 #21A551

square

#2133A5 #A52175 #A59321 #21A551

split-complementary

#2133A5 #A55121 #75A521

monochromatic

#0D133F #172372 #2133A5 #2E45D5 #6172DF

Accessibility & contrast

On white

10.09

#2133A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#2133A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2133A5

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2133A5	#FFFFFF	#000000	##FFFFFF
##2133A5	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A9

Deuteranopia (green-blind)

#003BA3

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2133a5;
/* rgb */ color: rgb(33, 51, 165);
/* oklch */ color: oklch(39.2% 0.182 268.7);

Tailwind

colors: {
  custom: {
    50: '#746bc1',
    500: '#2133a5',
    950: '#000000',
  },
}

SCSS

$custom: #2133a5;
$custom-light: #746bc1;
$custom-dark: #000000;

JSON

{
  "hex": "#2133a5",
  "rgb": {
    "r": 33,
    "g": 51,
    "b": 165
  },
  "hsl": {
    "h": 231.818,
    "s": 66.667,
    "l": 38.824
  },
  "oklch": {
    "l": 0.39238,
    "c": 0.18222,
    "h": 268.7
  },
  "luminance": 0.05408
}

Semantic roles & 50–950 ramp

primary

#2133A5

secondary

#C4B65E

accent

#D23EEA

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2133A5

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

Preview Lab → · Contrast checker → · Palette generator →