#2523BB#2523BB

#2523BB is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.6% C 0.223 H 270.5°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#2523BB
RGB	rgb(37, 35, 187)
HSL	hsl(241, 68%, 44%)
HSV	hsv(241, 81%, 73%)
CMYK	cmyk(80.2%, 81.3%, 0%, 26.7%)
CIE-LAB	lab(27.25, 52.21, -77.08)
CIE-LCH	lch(27.25, 93.09, 304.11°)
OKLab	oklab(39.56% 0.0019 -0.2231)
OKLCH	oklch(39.56% 0.223 270.5)
XYZ	xyz(10.3306, 5.1820, 47.4598)
Luminance	0.0518 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2523BB #B9BB23

analogous

#236DBB #2523BB #7123BB

triadic

#2523BB #BB2523 #23BB25

tetradic

#2523BB #BB236D #B9BB23 #23BB71

square

#2523BB #BB236D #B9BB23 #23BB71

split-complementary

#2523BB #BB7123 #6DBB23

monochromatic

#111054 #1B1987 #2523BB #4240DB #7574E5

Accessibility & contrast

On white

10.31

#2523BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2523BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2523BB

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2523BB	#FFFFFF	#000000	##FFFFFF
##2523BB	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048BF

Deuteranopia (green-blind)

#0038B8

Tritanopia (blue-blind)

#005370

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2523bb;
/* rgb */ color: rgb(37, 35, 187);
/* oklch */ color: oklch(39.6% 0.223 270.5);

Tailwind

colors: {
  custom: {
    50: '#7c62d1',
    500: '#2523bb',
    950: '#000000',
  },
}

SCSS

$custom: #2523bb;
$custom-light: #7c62d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2523bb",
  "rgb": {
    "r": 37,
    "g": 35,
    "b": 187
  },
  "hsl": {
    "h": 240.789,
    "s": 68.468,
    "l": 43.529
  },
  "oklch": {
    "l": 0.39557,
    "c": 0.22315,
    "h": 270.5
  },
  "luminance": 0.05183
}

Semantic roles & 50–950 ramp

primary

#2523BB

secondary

#CBCC6E

accent

#EB3CE9

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0514

muted

#7D7A83

Preview Lab

Preview with #2523BB

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

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