#2133A7#2133A7

#2133A7 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.4% C 0.185 H 268.6°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#2133A7
RGB	rgb(33, 51, 167)
HSL	hsl(232, 67%, 39%)
HSV	hsv(232, 80%, 65%)
CMYK	cmyk(80.2%, 69.5%, 0%, 34.5%)
CIE-LAB	lab(28.06, 36.14, -63.78)
CIE-LCH	lch(28.06, 73.31, 299.54°)
OKLab	oklab(39.44% -0.0044 -0.1847)
OKLCH	oklch(39.44% 0.185 268.6)
XYZ	xyz(8.7837, 5.4800, 37.1465)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2133A7 #A79521

analogous

#2176A7 #2133A7 #5221A7

triadic

#2133A7 #A72133 #33A721

tetradic

#2133A7 #A72176 #A79521 #21A752

square

#2133A7 #A72176 #A79521 #21A752

split-complementary

#2133A7 #A75221 #76A721

monochromatic

#0D1441 #172374 #2133A7 #2F46D6 #6273E0

Accessibility & contrast

On white

10.02

#2133A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#2133A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2133A7

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2133A7	#FFFFFF	#000000	##FFFFFF
##2133A7	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AB

Deuteranopia (green-blind)

#003CA5

Tritanopia (blue-blind)

#005369

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2133a7;
/* rgb */ color: rgb(33, 51, 167);
/* oklch */ color: oklch(39.4% 0.185 268.6);

Tailwind

colors: {
  custom: {
    50: '#756bc2',
    500: '#2133a7',
    950: '#000000',
  },
}

SCSS

$custom: #2133a7;
$custom-light: #756bc2;
$custom-dark: #000000;

JSON

{
  "hex": "#2133a7",
  "rgb": {
    "r": 33,
    "g": 51,
    "b": 167
  },
  "hsl": {
    "h": 231.94,
    "s": 67,
    "l": 39.216
  },
  "oklch": {
    "l": 0.39441,
    "c": 0.18479,
    "h": 268.6
  },
  "luminance": 0.05481
}

Semantic roles & 50–950 ramp

primary

#2133A7

secondary

#C5B75F

accent

#D33EEA

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2133A7

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

Preview Lab → · Contrast checker → · Palette generator →