#2B1DA8#2B1DA8

#2B1DA8 is a dark, highly saturated blue. Relative luminance 0.042; OKLCH L 37.0% C 0.204 H 274.3°. Best body text is #FFFFFF at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#2B1DA8
RGB	rgb(43, 29, 168)
HSL	hsl(246, 71%, 39%)
HSV	hsv(246, 83%, 66%)
CMYK	cmyk(74.4%, 82.7%, 0%, 34.1%)
CIE-LAB	lab(24.38, 49.55, -70.45)
CIE-LCH	lch(24.38, 86.13, 305.12°)
OKLab	oklab(37.02% 0.0154 -0.2037)
OKLCH	oklch(37.02% 0.204 274.3)
XYZ	xyz(8.5012, 4.2186, 37.4044)
Luminance	0.0422 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1DA8 #9AA81D

analogous

#1D54A8 #2B1DA8 #701DA8

triadic

#2B1DA8 #A82B1D #1DA82B

tetradic

#2B1DA8 #A81D54 #9AA81D #1DA870

square

#2B1DA8 #A81D54 #9AA81D #1DA870

split-complementary

#2B1DA8 #A8701D #54A81D

monochromatic

#100B40 #1E1474 #2B1DA8 #3A28DA #6A5CE3

Accessibility & contrast

On white

11.39

#2B1DA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#2B1DA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1DA8

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1DA8	#FFFFFF	#000000	##FFFFFF
##2B1DA8	1.00	11.39	1.84	11.39
#FFFFFF	11.39	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040AC

Deuteranopia (green-blind)

#0033A6

Tritanopia (blue-blind)

#004964

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2b1da8;
/* rgb */ color: rgb(43, 29, 168);
/* oklch */ color: oklch(37.0% 0.204 274.3);

Tailwind

colors: {
  custom: {
    50: '#7a5ec3',
    500: '#2b1da8',
    950: '#000000',
  },
}

SCSS

$custom: #2b1da8;
$custom-light: #7a5ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1da8",
  "rgb": {
    "r": 43,
    "g": 29,
    "b": 168
  },
  "hsl": {
    "h": 246.043,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.37015,
    "c": 0.2043,
    "h": 274.3
  },
  "luminance": 0.04219
}

Semantic roles & 50–950 ramp

primary

#2B1DA8

secondary

#BCC75A

accent

#ED3ADB

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2B1DA8

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

Preview Lab → · Contrast checker → · Palette generator →