#2131A9#2131A9

#2131A9 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.3% C 0.190 H 268.9°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#2131A9
RGB	rgb(33, 49, 169)
HSL	hsl(233, 67%, 40%)
HSV	hsv(233, 80%, 66%)
CMYK	cmyk(80.5%, 71%, 0%, 33.7%)
CIE-LAB	lab(27.80, 38.12, -65.42)
CIE-LCH	lch(27.80, 75.71, 300.23°)
OKLab	oklab(39.31% -0.0037 -0.1895)
OKLCH	oklch(39.31% 0.19 268.9)
XYZ	xyz(8.8845, 5.3835, 38.0993)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2131A9 #A99921

analogous

#2175A9 #2131A9 #5521A9

triadic

#2131A9 #A92131 #31A921

tetradic

#2131A9 #A92175 #A99921 #21A955

square

#2131A9 #A92175 #A99921 #21A955

split-complementary

#2131A9 #A95521 #75A921

monochromatic

#0D1343 #172276 #2131A9 #3144D7 #6472E1

Accessibility & contrast

On white

10.11

#2131A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#2131A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2131A9

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2131A9	#FFFFFF	#000000	##FFFFFF
##2131A9	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AD

Deuteranopia (green-blind)

#003BA7

Tritanopia (blue-blind)

#005369

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2131a9;
/* rgb */ color: rgb(33, 49, 169);
/* oklch */ color: oklch(39.3% 0.190 268.9);

Tailwind

colors: {
  custom: {
    50: '#7569c4',
    500: '#2131a9',
    950: '#000000',
  },
}

SCSS

$custom: #2131a9;
$custom-light: #7569c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2131a9",
  "rgb": {
    "r": 33,
    "g": 49,
    "b": 169
  },
  "hsl": {
    "h": 232.941,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.39313,
    "c": 0.18954,
    "h": 268.9
  },
  "luminance": 0.05385
}

Semantic roles & 50–950 ramp

primary

#2131A9

secondary

#C6BA60

accent

#D63EEA

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2131A9

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

Preview Lab → · Contrast checker → · Palette generator →