#2521AA#2521AA

#2521AA is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.3% C 0.205 H 271.7°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#2521AA
RGB	rgb(37, 33, 170)
HSL	hsl(242, 67%, 40%)
HSV	hsv(242, 81%, 67%)
CMYK	cmyk(78.2%, 80.6%, 0%, 33.3%)
CIE-LAB	lab(24.90, 47.84, -70.81)
CIE-LCH	lch(24.90, 85.46, 304.04°)
OKLab	oklab(37.34% 0.0061 -0.205)
OKLCH	oklch(37.34% 0.205 271.7)
XYZ	xyz(8.5601, 4.3824, 38.4172)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2521AA #A6AA21

analogous

#2161AA #2521AA #6A21AA

triadic

#2521AA #AA2521 #21AA25

tetradic

#2521AA #AA2161 #A6AA21 #21AA6A

square

#2521AA #AA2161 #A6AA21 #21AA6A

split-complementary

#2521AA #AA6A21 #61AA21

monochromatic

#0F0D43 #1A1777 #2521AA #3631D7 #6864E1

Accessibility & contrast

On white

11.19

#2521AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#2521AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2521AA

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2521AA	#FFFFFF	#000000	##FFFFFF
##2521AA	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042AE

Deuteranopia (green-blind)

#0034A8

Tritanopia (blue-blind)

#004C66

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2521aa;
/* rgb */ color: rgb(37, 33, 170);
/* oklch */ color: oklch(37.3% 0.205 271.7);

Tailwind

colors: {
  custom: {
    50: '#7860c5',
    500: '#2521aa',
    950: '#000000',
  },
}

SCSS

$custom: #2521aa;
$custom-light: #7860c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2521aa",
  "rgb": {
    "r": 37,
    "g": 33,
    "b": 170
  },
  "hsl": {
    "h": 241.752,
    "s": 67.488,
    "l": 39.804
  },
  "oklch": {
    "l": 0.37341,
    "c": 0.20505,
    "h": 271.7
  },
  "luminance": 0.04383
}

Semantic roles & 50–950 ramp

primary

#2521AA

secondary

#C3C661

accent

#EA3DE5

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2521AA

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

Preview Lab → · Contrast checker → · Palette generator →