#2521AD#2521AD

#2521AD is a dark, highly saturated blue. Relative luminance 0.045; OKLCH L 37.7% C 0.209 H 271.5°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#2521AD
RGB	rgb(37, 33, 173)
HSL	hsl(242, 68%, 40%)
HSV	hsv(242, 81%, 68%)
CMYK	cmyk(78.6%, 80.9%, 0%, 32.2%)
CIE-LAB	lab(25.25, 48.79, -72.03)
CIE-LCH	lch(25.25, 87.00, 304.11°)
OKLab	oklab(37.69% 0.0055 -0.2085)
OKLCH	oklch(37.69% 0.209 271.5)
XYZ	xyz(8.8471, 4.4972, 39.9288)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2521AD #A9AD21

analogous

#2163AD #2521AD #6B21AD

triadic

#2521AD #AD2521 #21AD25

tetradic

#2521AD #AD2163 #A9AD21 #21AD6B

square

#2521AD #AD2163 #A9AD21 #21AD6B

split-complementary

#2521AD #AD6B21 #63AD21

monochromatic

#0F0D46 #1A177A #2521AD #3833D8 #6A66E2

Accessibility & contrast

On white

11.05

#2521AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#2521AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2521AD

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2521AD	#FFFFFF	#000000	##FFFFFF
##2521AD	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B1

Deuteranopia (green-blind)

#0035AB

Tritanopia (blue-blind)

#004D68

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2521ad;
/* rgb */ color: rgb(37, 33, 173);
/* oklch */ color: oklch(37.7% 0.209 271.5);

Tailwind

colors: {
  custom: {
    50: '#7960c7',
    500: '#2521ad',
    950: '#000000',
  },
}

SCSS

$custom: #2521ad;
$custom-light: #7960c7;
$custom-dark: #000000;

JSON

{
  "hex": "#2521ad",
  "rgb": {
    "r": 37,
    "g": 33,
    "b": 173
  },
  "hsl": {
    "h": 241.714,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.3769,
    "c": 0.20856,
    "h": 271.5
  },
  "luminance": 0.04498
}

Semantic roles & 50–950 ramp

primary

#2521AD

secondary

#C4C762

accent

#EB3DE6

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2521AD

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

Preview Lab → · Contrast checker → · Palette generator →