#2B2597#2B2597

#2B2597 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.1% C 0.177 H 275.2°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#2B2597
RGB	rgb(43, 37, 151)
HSL	hsl(243, 61%, 37%)
HSV	hsv(243, 75%, 59%)
CMYK	cmyk(71.5%, 75.5%, 0%, 40.8%)
CIE-LAB	lab(23.90, 39.98, -60.87)
CIE-LCH	lch(23.90, 72.83, 303.29°)
OKLab	oklab(36.12% 0.0161 -0.176)
OKLCH	oklch(36.12% 0.177 275.2)
XYZ	xyz(7.2419, 4.0704, 29.6762)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B2597 #919725

analogous

#255897 #2B2597 #642597

triadic

#2B2597 #972B25 #25972B

tetradic

#2B2597 #972558 #919725 #259764

square

#2B2597 #972558 #919725 #259764

split-complementary

#2B2597 #976425 #589725

monochromatic

#0F0D35 #1D1966 #2B2597 #3931C8 #655FD8

Accessibility & contrast

On white

11.58

#2B2597 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#2B2597 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B2597

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B2597	#FFFFFF	#000000	##FFFFFF
##2B2597	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E9A

Deuteranopia (green-blind)

#003495

Tritanopia (blue-blind)

#00465C

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #2b2597;
/* rgb */ color: rgb(43, 37, 151);
/* oklch */ color: oklch(36.1% 0.177 275.2);

Tailwind

colors: {
  custom: {
    50: '#7561b7',
    500: '#2b2597',
    950: '#000000',
  },
}

SCSS

$custom: #2b2597;
$custom-light: #7561b7;
$custom-dark: #000000;

JSON

{
  "hex": "#2b2597",
  "rgb": {
    "r": 43,
    "g": 37,
    "b": 151
  },
  "hsl": {
    "h": 243.158,
    "s": 60.638,
    "l": 36.863
  },
  "oklch": {
    "l": 0.36118,
    "c": 0.17674,
    "h": 275.2
  },
  "luminance": 0.04071
}

Semantic roles & 50–950 ramp

primary

#2B2597

secondary

#B8BD5B

accent

#E444DB

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#0A0511

muted

#7C7980

Preview Lab

Preview with #2B2597

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

Preview Lab → · Contrast checker → · Palette generator →