#2529B1#2529B1

#2529B1 is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.2% C 0.206 H 270.6°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#2529B1
RGB	rgb(37, 41, 177)
HSL	hsl(238, 65%, 42%)
HSV	hsv(238, 79%, 69%)
CMYK	cmyk(79.1%, 76.8%, 0%, 30.6%)
CIE-LAB	lab(27.16, 45.90, -71.26)
CIE-LCH	lch(27.16, 84.76, 302.78°)
OKLab	oklab(39.17% 0.0022 -0.2064)
OKLCH	oklch(39.17% 0.206 270.6)
XYZ	xyz(9.4890, 5.1524, 42.0809)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2529B1 #B1AD25

analogous

#256FB1 #2529B1 #6725B1

triadic

#2529B1 #B12529 #29B125

tetradic

#2529B1 #B1256F #B1AD25 #25B167

square

#2529B1 #B1256F #B1AD25 #25B167

split-complementary

#2529B1 #B16725 #6FB125

monochromatic

#10124C #1A1D7E #2529B1 #3D41D6 #6F73E1

Accessibility & contrast

On white

10.34

#2529B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#2529B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2529B1

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2529B1	#FFFFFF	#000000	##FFFFFF
##2529B1	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B5

Deuteranopia (green-blind)

#0039AF

Tritanopia (blue-blind)

#00526C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2529b1;
/* rgb */ color: rgb(37, 41, 177);
/* oklch */ color: oklch(39.2% 0.206 270.6);

Tailwind

colors: {
  custom: {
    50: '#7965ca',
    500: '#2529b1',
    950: '#000000',
  },
}

SCSS

$custom: #2529b1;
$custom-light: #7965ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2529b1",
  "rgb": {
    "r": 37,
    "g": 41,
    "b": 177
  },
  "hsl": {
    "h": 238.286,
    "s": 65.421,
    "l": 41.961
  },
  "oklch": {
    "l": 0.39165,
    "c": 0.20638,
    "h": 270.6
  },
  "luminance": 0.05154
}

Semantic roles & 50–950 ramp

primary

#2529B1

secondary

#C8C56A

accent

#E43FE8

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2529B1

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

Preview Lab → · Contrast checker → · Palette generator →