#2A23A1#2A23A1

#2A23A1 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.9% C 0.191 H 274.1°. Best body text is #FFFFFF at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#2A23A1
RGB	rgb(42, 35, 161)
HSL	hsl(243, 64%, 38%)
HSV	hsv(243, 78%, 63%)
CMYK	cmyk(73.9%, 78.3%, 0%, 36.9%)
CIE-LAB	lab(24.53, 44.29, -65.95)
CIE-LCH	lch(24.53, 79.44, 303.88°)
OKLab	oklab(36.87% 0.0136 -0.1908)
OKLCH	oklch(36.87% 0.191 274.1)
XYZ	xyz(7.9868, 4.2667, 34.1139)
Luminance	0.0427 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A23A1 #9AA123

analogous

#235BA1 #2A23A1 #6923A1

triadic

#2A23A1 #A12A23 #23A12A

tetradic

#2A23A1 #A1235B #9AA123 #23A169

square

#2A23A1 #A1235B #9AA123 #23A169

split-complementary

#2A23A1 #A16923 #5BA123

monochromatic

#100D3C #1D186F #2A23A1 #382FD2 #6862DD

Accessibility & contrast

On white

11.33

#2A23A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#2A23A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A23A1

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A23A1	#FFFFFF	#000000	##FFFFFF
##2A23A1	1.00	11.33	1.85	11.33
#FFFFFF	11.33	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040A5

Deuteranopia (green-blind)

#00349F

Tritanopia (blue-blind)

#004961

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2a23a1;
/* rgb */ color: rgb(42, 35, 161);
/* oklch */ color: oklch(36.9% 0.191 274.1);

Tailwind

colors: {
  custom: {
    50: '#7761be',
    500: '#2a23a1',
    950: '#000000',
  },
}

SCSS

$custom: #2a23a1;
$custom-light: #7761be;
$custom-dark: #000000;

JSON

{
  "hex": "#2a23a1",
  "rgb": {
    "r": 42,
    "g": 35,
    "b": 161
  },
  "hsl": {
    "h": 243.333,
    "s": 64.286,
    "l": 38.431
  },
  "oklch": {
    "l": 0.36868,
    "c": 0.19126,
    "h": 274.1
  },
  "luminance": 0.04268
}

Semantic roles & 50–950 ramp

primary

#2A23A1

secondary

#BCC25E

accent

#E741DE

background

#F8F5FB

surface

#EFEAF7

border

#CAC6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2A23A1

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

Preview Lab → · Contrast checker → · Palette generator →