#2521AC#2521AC

#2521AC is a dark, highly saturated blue. Relative luminance 0.045; OKLCH L 37.6% C 0.207 H 271.6°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#2521AC
RGB	rgb(37, 33, 172)
HSL	hsl(242, 68%, 40%)
HSV	hsv(242, 81%, 67%)
CMYK	cmyk(78.5%, 80.8%, 0%, 32.5%)
CIE-LAB	lab(25.13, 48.48, -71.63)
CIE-LCH	lch(25.13, 86.49, 304.09°)
OKLab	oklab(37.57% 0.0057 -0.2073)
OKLCH	oklch(37.57% 0.207 271.6)
XYZ	xyz(8.7507, 4.4586, 39.4211)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2521AC #A8AC21

analogous

#2162AC #2521AC #6B21AC

triadic

#2521AC #AC2521 #21AC25

tetradic

#2521AC #AC2162 #A8AC21 #21AC6B

square

#2521AC #AC2162 #A8AC21 #21AC6B

split-complementary

#2521AC #AC6B21 #62AC21

monochromatic

#0F0D45 #1A1779 #2521AC #3732D8 #6966E2

Accessibility & contrast

On white

11.10

#2521AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#2521AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2521AC

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2521AC	#FFFFFF	#000000	##FFFFFF
##2521AC	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042B0

Deuteranopia (green-blind)

#0035AA

Tritanopia (blue-blind)

#004D67

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2521ac;
/* rgb */ color: rgb(37, 33, 172);
/* oklch */ color: oklch(37.6% 0.207 271.6);

Tailwind

colors: {
  custom: {
    50: '#7960c6',
    500: '#2521ac',
    950: '#000000',
  },
}

SCSS

$custom: #2521ac;
$custom-light: #7960c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2521ac",
  "rgb": {
    "r": 37,
    "g": 33,
    "b": 172
  },
  "hsl": {
    "h": 241.727,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.37573,
    "c": 0.2074,
    "h": 271.6
  },
  "luminance": 0.0446
}

Semantic roles & 50–950 ramp

primary

#2521AC

secondary

#C4C762

accent

#EB3DE6

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2521AC

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

Preview Lab → · Contrast checker → · Palette generator →