#2545AA#2545AA

#2545AA is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.2% C 0.166 H 266.1°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#2545AA
RGB	rgb(37, 69, 170)
HSL	hsl(226, 64%, 41%)
HSV	hsv(226, 78%, 67%)
CMYK	cmyk(78.2%, 59.4%, 0%, 33.3%)
CIE-LAB	lab(33.03, 25.84, -57.44)
CIE-LCH	lch(33.03, 62.98, 294.22°)
OKLab	oklab(43.23% -0.0114 -0.1659)
OKLCH	oklch(43.23% 0.166 266.1)
XYZ	xyz(10.1442, 7.5507, 38.9452)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2545AA #AA8A25

analogous

#2587AA #2545AA #4725AA

triadic

#2545AA #AA2545 #45AA25

tetradic

#2545AA #AA2587 #AA8A25 #25AA47

square

#2545AA #AA2587 #AA8A25 #25AA47

split-complementary

#2545AA #AA4725 #87AA25

monochromatic

#0F1C45 #1A3178 #2545AA #385ED4 #6B87DF

Accessibility & contrast

On white

8.37

#2545AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#2545AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2545AA

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2545AA	#FFFFFF	#000000	##FFFFFF
##2545AA	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AD

Deuteranopia (green-blind)

#0048A8

Tritanopia (blue-blind)

#005F70

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2545aa;
/* rgb */ color: rgb(37, 69, 170);
/* oklch */ color: oklch(43.2% 0.166 266.1);

Tailwind

colors: {
  custom: {
    50: '#7578c4',
    500: '#2545aa',
    950: '#000000',
  },
}

SCSS

$custom: #2545aa;
$custom-light: #7578c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2545aa",
  "rgb": {
    "r": 37,
    "g": 69,
    "b": 170
  },
  "hsl": {
    "h": 225.564,
    "s": 64.251,
    "l": 40.588
  },
  "oklch": {
    "l": 0.43232,
    "c": 0.16632,
    "h": 266.1
  },
  "luminance": 0.07552
}

Semantic roles & 50–950 ramp

primary

#2545AA

secondary

#C5AE66

accent

#BF41E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2545AA

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

Preview Lab → · Contrast checker → · Palette generator →