#2541AB#2541AB

#2541AB is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.5% C 0.173 H 267.1°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#2541AB
RGB	rgb(37, 65, 171)
HSL	hsl(227, 64%, 41%)
HSV	hsv(227, 78%, 67%)
CMYK	cmyk(78.4%, 62%, 0%, 32.9%)
CIE-LAB	lab(32.06, 28.89, -59.61)
CIE-LCH	lch(32.06, 66.24, 295.85°)
OKLab	oklab(42.54% -0.0088 -0.1724)
OKLCH	oklch(42.54% 0.173 267.1)
XYZ	xyz(10.0014, 7.1130, 39.3660)
Luminance	0.0711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2541AB #AB8F25

analogous

#2584AB #2541AB #4C25AB

triadic

#2541AB #AB2541 #41AB25

tetradic

#2541AB #AB2584 #AB8F25 #25AB4C

square

#2541AB #AB2584 #AB8F25 #25AB4C

split-complementary

#2541AB #AB4C25 #84AB25

monochromatic

#0F1B46 #1A2E79 #2541AB #3959D4 #6B84DF

Accessibility & contrast

On white

8.67

#2541AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#2541AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2541AB

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2541AB	#FFFFFF	#000000	##FFFFFF
##2541AB	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AE

Deuteranopia (green-blind)

#0045A9

Tritanopia (blue-blind)

#005C6F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2541ab;
/* rgb */ color: rgb(37, 65, 171);
/* oklch */ color: oklch(42.5% 0.173 267.1);

Tailwind

colors: {
  custom: {
    50: '#7675c5',
    500: '#2541ab',
    950: '#000000',
  },
}

SCSS

$custom: #2541ab;
$custom-light: #7675c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2541ab",
  "rgb": {
    "r": 37,
    "g": 65,
    "b": 171
  },
  "hsl": {
    "h": 227.463,
    "s": 64.423,
    "l": 40.784
  },
  "oklch": {
    "l": 0.42538,
    "c": 0.17259,
    "h": 267.1
  },
  "luminance": 0.07114
}

Semantic roles & 50–950 ramp

primary

#2541AB

secondary

#C5B167

accent

#C540E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2541AB

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

Preview Lab → · Contrast checker → · Palette generator →