#2131A7#2131A7

#2131A7 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.1% C 0.187 H 268.9°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#2131A7
RGB	rgb(33, 49, 167)
HSL	hsl(233, 67%, 39%)
HSV	hsv(233, 80%, 65%)
CMYK	cmyk(80.2%, 70.7%, 0%, 34.5%)
CIE-LAB	lab(27.60, 37.40, -64.55)
CIE-LCH	lch(27.60, 74.60, 300.09°)
OKLab	oklab(39.11% -0.0035 -0.187)
OKLCH	oklch(39.11% 0.187 268.9)
XYZ	xyz(8.6982, 5.3090, 37.1180)
Luminance	0.0531 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2131A7 #A79721

analogous

#2174A7 #2131A7 #5421A7

triadic

#2131A7 #A72131 #31A721

tetradic

#2131A7 #A72174 #A79721 #21A754

square

#2131A7 #A72174 #A79721 #21A754

split-complementary

#2131A7 #A75421 #74A721

monochromatic

#0D1341 #172274 #2131A7 #2F43D6 #6271E0

Accessibility & contrast

On white

10.18

#2131A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#2131A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2131A7

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2131A7	#FFFFFF	#000000	##FFFFFF
##2131A7	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AB

Deuteranopia (green-blind)

#003BA5

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2131a7;
/* rgb */ color: rgb(33, 49, 167);
/* oklch */ color: oklch(39.1% 0.187 268.9);

Tailwind

colors: {
  custom: {
    50: '#7569c2',
    500: '#2131a7',
    950: '#000000',
  },
}

SCSS

$custom: #2131a7;
$custom-light: #7569c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2131a7",
  "rgb": {
    "r": 33,
    "g": 49,
    "b": 167
  },
  "hsl": {
    "h": 232.836,
    "s": 67,
    "l": 39.216
  },
  "oklch": {
    "l": 0.39106,
    "c": 0.18699,
    "h": 268.9
  },
  "luminance": 0.0531
}

Semantic roles & 50–950 ramp

primary

#2131A7

secondary

#C5B95F

accent

#D53EEA

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2131A7

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

Preview Lab → · Contrast checker → · Palette generator →