#2B23A0#2B23A0

#2B23A0 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.8% C 0.190 H 274.6°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#2B23A0
RGB	rgb(43, 35, 160)
HSL	hsl(244, 64%, 38%)
HSV	hsv(244, 78%, 63%)
CMYK	cmyk(73.1%, 78.1%, 0%, 37.3%)
CIE-LAB	lab(24.49, 44.05, -65.41)
CIE-LCH	lch(24.49, 78.86, 303.96°)
OKLab	oklab(36.82% 0.0151 -0.1892)
OKLCH	oklch(36.82% 0.19 274.6)
XYZ	xyz(7.9404, 4.2529, 33.6533)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B23A0 #98A023

analogous

#2359A0 #2B23A0 #6923A0

triadic

#2B23A0 #A02B23 #23A02B

tetradic

#2B23A0 #A02359 #98A023 #23A069

square

#2B23A0 #A02359 #98A023 #23A069

split-complementary

#2B23A0 #A06923 #59A023

monochromatic

#100D3C #1E186E #2B23A0 #392FD1 #6961DC

Accessibility & contrast

On white

11.35

#2B23A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#2B23A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B23A0

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B23A0	#FFFFFF	#000000	##FFFFFF
##2B23A0	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040A4

Deuteranopia (green-blind)

#00349E

Tritanopia (blue-blind)

#004861

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2b23a0;
/* rgb */ color: rgb(43, 35, 160);
/* oklch */ color: oklch(36.8% 0.190 274.6);

Tailwind

colors: {
  custom: {
    50: '#7861bd',
    500: '#2b23a0',
    950: '#000000',
  },
}

SCSS

$custom: #2b23a0;
$custom-light: #7861bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2b23a0",
  "rgb": {
    "r": 43,
    "g": 35,
    "b": 160
  },
  "hsl": {
    "h": 243.84,
    "s": 64.103,
    "l": 38.235
  },
  "oklch": {
    "l": 0.36822,
    "c": 0.18979,
    "h": 274.6
  },
  "luminance": 0.04254
}

Semantic roles & 50–950 ramp

primary

#2B23A0

secondary

#BBC15D

accent

#E741DC

background

#F8F5FB

surface

#EFEAF7

border

#CAC6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2B23A0

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

Preview Lab → · Contrast checker → · Palette generator →