#2521BC#2521BC

#2521BC is a dark, highly saturated blue. Relative luminance 0.051; OKLCH L 39.5% C 0.226 H 270.5°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#2521BC
RGB	rgb(37, 33, 188)
HSL	hsl(242, 70%, 43%)
HSV	hsv(242, 82%, 74%)
CMYK	cmyk(80.3%, 82.4%, 0%, 26.3%)
CIE-LAB	lab(27.05, 53.45, -78.00)
CIE-LCH	lch(27.05, 94.56, 304.42°)
OKLab	oklab(39.45% 0.0021 -0.2258)
OKLCH	oklch(39.45% 0.226 270.5)
XYZ	xyz(10.3808, 5.1107, 48.0065)
Luminance	0.0511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2521BC #B8BC21

analogous

#216BBC #2521BC #7221BC

triadic

#2521BC #BC2521 #21BC25

tetradic

#2521BC #BC216B #B8BC21 #21BC72

square

#2521BC #BC216B #B8BC21 #21BC72

split-complementary

#2521BC #BC7221 #6BBC21

monochromatic

#110F54 #1B1888 #2521BC #413DDD #7471E6

Accessibility & contrast

On white

10.38

#2521BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#2521BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2521BC

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2521BC	#FFFFFF	#000000	##FFFFFF
##2521BC	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048C0

Deuteranopia (green-blind)

#0038B9

Tritanopia (blue-blind)

#005370

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2521bc;
/* rgb */ color: rgb(37, 33, 188);
/* oklch */ color: oklch(39.5% 0.226 270.5);

Tailwind

colors: {
  custom: {
    50: '#7d61d2',
    500: '#2521bc',
    950: '#000000',
  },
}

SCSS

$custom: #2521bc;
$custom-light: #7d61d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2521bc",
  "rgb": {
    "r": 37,
    "g": 33,
    "b": 188
  },
  "hsl": {
    "h": 241.548,
    "s": 70.136,
    "l": 43.333
  },
  "oklch": {
    "l": 0.39453,
    "c": 0.22578,
    "h": 270.5
  },
  "luminance": 0.05112
}

Semantic roles & 50–950 ramp

primary

#2521BC

secondary

#CACD6C

accent

#ED3BE8

background

#F8F5FD

surface

#F0EAFA

border

#CBC6D3

text

#0C0514

muted

#7D7983

Preview Lab

Preview with #2521BC

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

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