#2545AB#2545AB

#2545AB is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.3% C 0.168 H 266.1°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#2545AB
RGB	rgb(37, 69, 171)
HSL	hsl(226, 64%, 41%)
HSV	hsv(226, 78%, 67%)
CMYK	cmyk(78.4%, 59.6%, 0%, 32.9%)
CIE-LAB	lab(33.11, 26.22, -57.90)
CIE-LCH	lch(33.11, 63.56, 294.37°)
OKLab	oklab(43.32% -0.0114 -0.1673)
OKLCH	oklch(43.32% 0.168 266.1)
XYZ	xyz(10.2392, 7.5887, 39.4453)
Luminance	0.0759 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2545AB #AB8B25

analogous

#2588AB #2545AB #4825AB

triadic

#2545AB #AB2545 #45AB25

tetradic

#2545AB #AB2588 #AB8B25 #25AB48

square

#2545AB #AB2588 #AB8B25 #25AB48

split-complementary

#2545AB #AB4825 #88AB25

monochromatic

#0F1C46 #1A3179 #2545AB #395ED4 #6B87DF

Accessibility & contrast

On white

8.34

#2545AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#2545AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2545AB

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2545AB	#FFFFFF	#000000	##FFFFFF
##2545AB	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AE

Deuteranopia (green-blind)

#0048A9

Tritanopia (blue-blind)

#005F71

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2545ab;
/* rgb */ color: rgb(37, 69, 171);
/* oklch */ color: oklch(43.3% 0.168 266.1);

Tailwind

colors: {
  custom: {
    50: '#7578c5',
    500: '#2545ab',
    950: '#000000',
  },
}

SCSS

$custom: #2545ab;
$custom-light: #7578c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2545ab",
  "rgb": {
    "r": 37,
    "g": 69,
    "b": 171
  },
  "hsl": {
    "h": 225.672,
    "s": 64.423,
    "l": 40.784
  },
  "oklch": {
    "l": 0.43319,
    "c": 0.16768,
    "h": 266.1
  },
  "luminance": 0.0759
}

Semantic roles & 50–950 ramp

primary

#2545AB

secondary

#C5AF67

accent

#C040E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2545AB

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

Preview Lab → · Contrast checker → · Palette generator →