#2541A8#2541A8

#2541A8 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.3% C 0.169 H 267.0°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#2541A8
RGB	rgb(37, 65, 168)
HSL	hsl(227, 64%, 40%)
HSV	hsv(227, 78%, 66%)
CMYK	cmyk(78%, 61.3%, 0%, 34.1%)
CIE-LAB	lab(31.81, 27.74, -58.23)
CIE-LCH	lch(31.81, 64.50, 295.47°)
OKLab	oklab(42.27% -0.0088 -0.1683)
OKLCH	oklch(42.27% 0.169 267)
XYZ	xyz(9.7187, 7.0000, 37.8771)
Luminance	0.0700 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2541A8 #A88C25

analogous

#2582A8 #2541A8 #4B25A8

triadic

#2541A8 #A82541 #41A825

tetradic

#2541A8 #A82582 #A88C25 #25A84B

square

#2541A8 #A82582 #A88C25 #25A84B

split-complementary

#2541A8 #A84B25 #82A825

monochromatic

#0F1A44 #1A2E76 #2541A8 #3759D3 #6982DE

Accessibility & contrast

On white

8.75

#2541A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2541A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2541A8

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2541A8	#FFFFFF	#000000	##FFFFFF
##2541A8	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AB

Deuteranopia (green-blind)

#0045A6

Tritanopia (blue-blind)

#005B6E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2541a8;
/* rgb */ color: rgb(37, 65, 168);
/* oklch */ color: oklch(42.3% 0.169 267.0);

Tailwind

colors: {
  custom: {
    50: '#7575c3',
    500: '#2541a8',
    950: '#000000',
  },
}

SCSS

$custom: #2541a8;
$custom-light: #7575c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2541a8",
  "rgb": {
    "r": 37,
    "g": 65,
    "b": 168
  },
  "hsl": {
    "h": 227.176,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.42269,
    "c": 0.16855,
    "h": 267
  },
  "luminance": 0.07001
}

Semantic roles & 50–950 ramp

primary

#2541A8

secondary

#C4B065

accent

#C341E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2541A8

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

Preview Lab → · Contrast checker → · Palette generator →