#2331A0#2331A0

#2331A0 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.5% C 0.177 H 269.7°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#2331A0
RGB	rgb(35, 49, 160)
HSL	hsl(233, 64%, 38%)
HSV	hsv(233, 78%, 63%)
CMYK	cmyk(78.1%, 69.4%, 0%, 37.3%)
CIE-LAB	lab(26.99, 35.03, -61.30)
CIE-LCH	lch(26.99, 70.60, 299.75°)
OKLab	oklab(38.48% -0.0009 -0.1775)
OKLCH	oklch(38.48% 0.177 269.7)
XYZ	xyz(8.1344, 5.0911, 33.8049)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2331A0 #A09223

analogous

#236FA0 #2331A0 #5323A0

triadic

#2331A0 #A02331 #31A023

tetradic

#2331A0 #A0236F #A09223 #23A053

square

#2331A0 #A0236F #A09223 #23A053

split-complementary

#2331A0 #A05323 #6FA023

monochromatic

#0D123C #18226E #2331A0 #2F41D1 #616FDC

Accessibility & contrast

On white

10.40

#2331A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#2331A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2331A0

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2331A0	#FFFFFF	#000000	##FFFFFF
##2331A0	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A3

Deuteranopia (green-blind)

#003A9E

Tritanopia (blue-blind)

#004F64

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2331a0;
/* rgb */ color: rgb(35, 49, 160);
/* oklch */ color: oklch(38.5% 0.177 269.7);

Tailwind

colors: {
  custom: {
    50: '#7469bd',
    500: '#2331a0',
    950: '#000000',
  },
}

SCSS

$custom: #2331a0;
$custom-light: #7469bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2331a0",
  "rgb": {
    "r": 35,
    "g": 49,
    "b": 160
  },
  "hsl": {
    "h": 233.28,
    "s": 64.103,
    "l": 38.235
  },
  "oklch": {
    "l": 0.38483,
    "c": 0.17746,
    "h": 269.7
  },
  "luminance": 0.05092
}

Semantic roles & 50–950 ramp

primary

#2331A0

secondary

#C1B65D

accent

#D441E7

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2331A0

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

Preview Lab → · Contrast checker → · Palette generator →