#2D21B3#2D21B3

#2D21B3 is a dark, highly saturated blue. Relative luminance 0.049; OKLCH L 38.9% C 0.213 H 273.7°. Best body text is #FFFFFF at 10.61:1 contrast (WCAG AA passes).

Color values

HEX	#2D21B3
RGB	rgb(45, 33, 179)
HSL	hsl(245, 69%, 42%)
HSV	hsv(245, 82%, 70%)
CMYK	cmyk(74.9%, 81.6%, 0%, 29.8%)
CIE-LAB	lab(26.45, 51.18, -73.63)
CIE-LCH	lch(26.45, 89.67, 304.80°)
OKLab	oklab(38.85% 0.0138 -0.213)
OKLCH	oklch(38.85% 0.213 273.7)
XYZ	xyz(9.7600, 4.8993, 43.0704)
Luminance	0.0490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D21B3 #A7B321

analogous

#215EB3 #2D21B3 #7621B3

triadic

#2D21B3 #B32D21 #21B32D

tetradic

#2D21B3 #B3215E #A7B321 #21B376

square

#2D21B3 #B3215E #A7B321 #21B376

split-complementary

#2D21B3 #B37621 #5EB321

monochromatic

#130E4C #20177F #2D21B3 #4437DA #756BE4

Accessibility & contrast

On white

10.61

#2D21B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#2D21B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D21B3

10.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D21B3	#FFFFFF	#000000	##FFFFFF
##2D21B3	1.00	10.61	1.98	10.61
#FFFFFF	10.61	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045B7

Deuteranopia (green-blind)

#0038B1

Tritanopia (blue-blind)

#004F6B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2d21b3;
/* rgb */ color: rgb(45, 33, 179);
/* oklch */ color: oklch(38.9% 0.213 273.7);

Tailwind

colors: {
  custom: {
    50: '#7d61cb',
    500: '#2d21b3',
    950: '#000000',
  },
}

SCSS

$custom: #2d21b3;
$custom-light: #7d61cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2d21b3",
  "rgb": {
    "r": 45,
    "g": 33,
    "b": 179
  },
  "hsl": {
    "h": 244.932,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.38854,
    "c": 0.21343,
    "h": 273.7
  },
  "luminance": 0.049
}

Semantic roles & 50–950 ramp

primary

#2D21B3

secondary

#C1CA66

accent

#EC3CDD

background

#F8F5FC

surface

#F0EAF9

border

#CBC6D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #2D21B3

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

Preview Lab → · Contrast checker → · Palette generator →