#2A23A0#2A23A0

#2A23A0 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.8% C 0.190 H 274.2°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#2A23A0
RGB	rgb(42, 35, 160)
HSL	hsl(243, 64%, 38%)
HSV	hsv(243, 78%, 63%)
CMYK	cmyk(73.8%, 78.1%, 0%, 37.3%)
CIE-LAB	lab(24.42, 43.96, -65.53)
CIE-LCH	lch(24.42, 78.91, 303.86°)
OKLab	oklab(36.76% 0.0138 -0.1895)
OKLCH	oklch(36.76% 0.19 274.2)
XYZ	xyz(7.8989, 4.2316, 33.6514)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A23A0 #99A023

analogous

#235AA0 #2A23A0 #6823A0

triadic

#2A23A0 #A02A23 #23A02A

tetradic

#2A23A0 #A0235A #99A023 #23A068

square

#2A23A0 #A0235A #99A023 #23A068

split-complementary

#2A23A0 #A06823 #5AA023

monochromatic

#100D3C #1D186E #2A23A0 #382FD1 #6861DC

Accessibility & contrast

On white

11.37

#2A23A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#2A23A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A23A0

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A23A0	#FFFFFF	#000000	##FFFFFF
##2A23A0	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040A4

Deuteranopia (green-blind)

#00349E

Tritanopia (blue-blind)

#004961

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2a23a0;
/* rgb */ color: rgb(42, 35, 160);
/* oklch */ color: oklch(36.8% 0.190 274.2);

Tailwind

colors: {
  custom: {
    50: '#7761bd',
    500: '#2a23a0',
    950: '#000000',
  },
}

SCSS

$custom: #2a23a0;
$custom-light: #7761bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2a23a0",
  "rgb": {
    "r": 42,
    "g": 35,
    "b": 160
  },
  "hsl": {
    "h": 243.36,
    "s": 64.103,
    "l": 38.235
  },
  "oklch": {
    "l": 0.36757,
    "c": 0.19004,
    "h": 274.2
  },
  "luminance": 0.04232
}

Semantic roles & 50–950 ramp

primary

#2A23A0

secondary

#BCC15D

accent

#E741DE

background

#F7F5FB

surface

#EEEAF7

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2A23A0

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

Preview Lab → · Contrast checker → · Palette generator →