#2545B2#2545B2

#2545B2 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.9% C 0.177 H 266.3°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#2545B2
RGB	rgb(37, 69, 178)
HSL	hsl(226, 66%, 42%)
HSV	hsv(226, 79%, 70%)
CMYK	cmyk(79.2%, 61.2%, 0%, 30.2%)
CIE-LAB	lab(33.70, 28.90, -61.11)
CIE-LCH	lch(33.70, 67.60, 295.31°)
OKLab	oklab(43.94% -0.0113 -0.1767)
OKLCH	oklch(43.94% 0.177 266.3)
XYZ	xyz(10.9241, 7.8626, 43.0527)
Luminance	0.0786 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2545B2 #B29225

analogous

#258CB2 #2545B2 #4C25B2

triadic

#2545B2 #B22545 #45B225

tetradic

#2545B2 #B2258C #B29225 #25B24C

square

#2545B2 #B2258C #B29225 #25B24C

split-complementary

#2545B2 #B24C25 #8CB225

monochromatic

#101E4D #1A317F #2545B2 #3D60D7 #708AE1

Accessibility & contrast

On white

8.16

#2545B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#2545B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2545B2

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2545B2	#FFFFFF	#000000	##FFFFFF
##2545B2	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B6

Deuteranopia (green-blind)

#0049B0

Tritanopia (blue-blind)

#006175

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2545b2;
/* rgb */ color: rgb(37, 69, 178);
/* oklch */ color: oklch(43.9% 0.177 266.3);

Tailwind

colors: {
  custom: {
    50: '#7778ca',
    500: '#2545b2',
    950: '#000000',
  },
}

SCSS

$custom: #2545b2;
$custom-light: #7778ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2545b2",
  "rgb": {
    "r": 37,
    "g": 69,
    "b": 178
  },
  "hsl": {
    "h": 226.383,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.43936,
    "c": 0.17707,
    "h": 266.3
  },
  "luminance": 0.07864
}

Semantic roles & 50–950 ramp

primary

#2545B2

secondary

#C8B36B

accent

#C23FE9

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2545B2

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

Preview Lab → · Contrast checker → · Palette generator →