#2541B2#2541B2

#2541B2 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.2% C 0.182 H 267.2°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#2541B2
RGB	rgb(37, 65, 178)
HSL	hsl(228, 66%, 42%)
HSV	hsv(228, 79%, 70%)
CMYK	cmyk(79.2%, 63.5%, 0%, 30.2%)
CIE-LAB	lab(32.67, 31.53, -62.79)
CIE-LCH	lch(32.67, 70.26, 296.66°)
OKLab	oklab(43.18% -0.0089 -0.1817)
OKLCH	oklch(43.18% 0.182 267.2)
XYZ	xyz(10.6863, 7.3870, 42.9735)
Luminance	0.0739 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2541B2 #B29625

analogous

#2588B2 #2541B2 #5025B2

triadic

#2541B2 #B22541 #41B225

tetradic

#2541B2 #B22588 #B29625 #25B250

square

#2541B2 #B22588 #B29625 #25B250

split-complementary

#2541B2 #B25025 #88B225

monochromatic

#101C4D #1A2E7F #2541B2 #3D5CD7 #7087E1

Accessibility & contrast

On white

8.48

#2541B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#2541B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2541B2

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2541B2	#FFFFFF	#000000	##FFFFFF
##2541B2	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B6

Deuteranopia (green-blind)

#0046B0

Tritanopia (blue-blind)

#005F73

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2541b2;
/* rgb */ color: rgb(37, 65, 178);
/* oklch */ color: oklch(43.2% 0.182 267.2);

Tailwind

colors: {
  custom: {
    50: '#7775ca',
    500: '#2541b2',
    950: '#000000',
  },
}

SCSS

$custom: #2541b2;
$custom-light: #7775ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2541b2",
  "rgb": {
    "r": 37,
    "g": 65,
    "b": 178
  },
  "hsl": {
    "h": 228.085,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.43178,
    "c": 0.18188,
    "h": 267.2
  },
  "luminance": 0.07388
}

Semantic roles & 50–950 ramp

primary

#2541B2

secondary

#C8B66B

accent

#C73FE9

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2541B2

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

Preview Lab → · Contrast checker → · Palette generator →