#2527B1#2527B1

#2527B1 is a dark, highly saturated blue. Relative luminance 0.050; OKLCH L 38.9% C 0.208 H 270.8°. Best body text is #FFFFFF at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#2527B1
RGB	rgb(37, 39, 177)
HSL	hsl(239, 65%, 42%)
HSV	hsv(239, 79%, 69%)
CMYK	cmyk(79.1%, 78%, 0%, 30.6%)
CIE-LAB	lab(26.78, 46.98, -71.89)
CIE-LCH	lch(26.78, 85.88, 303.17°)
OKLab	oklab(38.9% 0.0028 -0.2082)
OKLCH	oklch(38.9% 0.208 270.8)
XYZ	xyz(9.4216, 5.0176, 42.0584)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2527B1 #B1AF25

analogous

#256DB1 #2527B1 #6925B1

triadic

#2527B1 #B12527 #27B125

tetradic

#2527B1 #B1256D #B1AF25 #25B169

square

#2527B1 #B1256D #B1AF25 #25B169

split-complementary

#2527B1 #B16925 #6DB125

monochromatic

#10114C #1A1C7E #2527B1 #3D3FD6 #6F71E1

Accessibility & contrast

On white

10.48

#2527B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#2527B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2527B1

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2527B1	#FFFFFF	#000000	##FFFFFF
##2527B1	1.00	10.48	2.00	10.48
#FFFFFF	10.48	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046B5

Deuteranopia (green-blind)

#0038AF

Tritanopia (blue-blind)

#00516B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2527b1;
/* rgb */ color: rgb(37, 39, 177);
/* oklch */ color: oklch(38.9% 0.208 270.8);

Tailwind

colors: {
  custom: {
    50: '#7964ca',
    500: '#2527b1',
    950: '#000000',
  },
}

SCSS

$custom: #2527b1;
$custom-light: #7964ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2527b1",
  "rgb": {
    "r": 37,
    "g": 39,
    "b": 177
  },
  "hsl": {
    "h": 239.143,
    "s": 65.421,
    "l": 41.961
  },
  "oklch": {
    "l": 0.38897,
    "c": 0.20819,
    "h": 270.8
  },
  "luminance": 0.05019
}

Semantic roles & 50–950 ramp

primary

#2527B1

secondary

#C8C66A

accent

#E63FE8

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0513

muted

#7C7A82

Preview Lab

Preview with #2527B1

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

Preview Lab → · Contrast checker → · Palette generator →