#2545A8#2545A8

#2545A8 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.1% C 0.164 H 266.0°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#2545A8
RGB	rgb(37, 69, 168)
HSL	hsl(225, 64%, 40%)
HSV	hsv(225, 78%, 66%)
CMYK	cmyk(78%, 58.9%, 0%, 34.1%)
CIE-LAB	lab(32.87, 25.07, -56.51)
CIE-LCH	lch(32.87, 61.82, 293.93°)
OKLab	oklab(43.06% -0.0115 -0.1632)
OKLCH	oklch(43.06% 0.164 266)
XYZ	xyz(9.9565, 7.4756, 37.9564)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2545A8 #A88825

analogous

#2586A8 #2545A8 #4725A8

triadic

#2545A8 #A82545 #45A825

tetradic

#2545A8 #A82586 #A88825 #25A847

square

#2545A8 #A82586 #A88825 #25A847

split-complementary

#2545A8 #A84725 #86A825

monochromatic

#0F1C44 #1A3076 #2545A8 #375DD3 #6986DE

Accessibility & contrast

On white

8.42

#2545A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#2545A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2545A8

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2545A8	#FFFFFF	#000000	##FFFFFF
##2545A8	1.00	8.42	2.50	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AB

Deuteranopia (green-blind)

#0047A6

Tritanopia (blue-blind)

#005E6F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2545a8;
/* rgb */ color: rgb(37, 69, 168);
/* oklch */ color: oklch(43.1% 0.164 266.0);

Tailwind

colors: {
  custom: {
    50: '#7478c3',
    500: '#2545a8',
    950: '#000000',
  },
}

SCSS

$custom: #2545a8;
$custom-light: #7478c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2545a8",
  "rgb": {
    "r": 37,
    "g": 69,
    "b": 168
  },
  "hsl": {
    "h": 225.344,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.43059,
    "c": 0.1636,
    "h": 266
  },
  "luminance": 0.07477
}

Semantic roles & 50–950 ramp

primary

#2545A8

secondary

#C4AD65

accent

#BE41E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2545A8

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

Preview Lab → · Contrast checker → · Palette generator →