#2A23BB#2A23BB

#2A23BB is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.8% C 0.222 H 272.0°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#2A23BB
RGB	rgb(42, 35, 187)
HSL	hsl(243, 68%, 44%)
HSV	hsv(243, 81%, 73%)
CMYK	cmyk(77.5%, 81.3%, 0%, 26.7%)
CIE-LAB	lab(27.52, 52.49, -76.62)
CIE-LCH	lch(27.52, 92.87, 304.42°)
OKLab	oklab(39.82% 0.0076 -0.2217)
OKLCH	oklch(39.82% 0.222 272)
XYZ	xyz(10.5225, 5.2810, 47.4688)
Luminance	0.0528 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A23BB #B4BB23

analogous

#2368BB #2A23BB #7623BB

triadic

#2A23BB #BB2A23 #23BB2A

tetradic

#2A23BB #BB2368 #B4BB23 #23BB76

square

#2A23BB #BB2368 #B4BB23 #23BB76

split-complementary

#2A23BB #BB7623 #68BB23

monochromatic

#131054 #1E1987 #2A23BB #4740DB #7974E5

Accessibility & contrast

On white

10.21

#2A23BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#2A23BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A23BB

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A23BB	#FFFFFF	#000000	##FFFFFF
##2A23BB	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048BF

Deuteranopia (green-blind)

#0039B8

Tritanopia (blue-blind)

#005370

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2a23bb;
/* rgb */ color: rgb(42, 35, 187);
/* oklch */ color: oklch(39.8% 0.222 272.0);

Tailwind

colors: {
  custom: {
    50: '#7e62d1',
    500: '#2a23bb',
    950: '#000000',
  },
}

SCSS

$custom: #2a23bb;
$custom-light: #7e62d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a23bb",
  "rgb": {
    "r": 42,
    "g": 35,
    "b": 187
  },
  "hsl": {
    "h": 242.763,
    "s": 68.468,
    "l": 43.529
  },
  "oklch": {
    "l": 0.39821,
    "c": 0.22184,
    "h": 272
  },
  "luminance": 0.05282
}

Semantic roles & 50–950 ramp

primary

#2A23BB

secondary

#C8CC6E

accent

#EB3CE3

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0514

muted

#7D7A83

Preview Lab

Preview with #2A23BB

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

Preview Lab → · Contrast checker → · Palette generator →