#2542B2#2542B2

#2542B2 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.4% C 0.181 H 267.0°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#2542B2
RGB	rgb(37, 66, 178)
HSL	hsl(228, 66%, 42%)
HSV	hsv(228, 79%, 70%)
CMYK	cmyk(79.2%, 62.9%, 0%, 30.2%)
CIE-LAB	lab(32.93, 30.87, -62.37)
CIE-LCH	lch(32.93, 69.59, 296.33°)
OKLab	oklab(43.36% -0.0095 -0.1804)
OKLCH	oklch(43.36% 0.181 267)
XYZ	xyz(10.7442, 7.5029, 42.9928)
Luminance	0.0750 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2542B2 #B29525

analogous

#2588B2 #2542B2 #4F25B2

triadic

#2542B2 #B22542 #42B225

tetradic

#2542B2 #B22588 #B29525 #25B24F

square

#2542B2 #B22588 #B29525 #25B24F

split-complementary

#2542B2 #B24F25 #88B225

monochromatic

#101C4D #1A2F7F #2542B2 #3D5DD7 #7087E1

Accessibility & contrast

On white

8.40

#2542B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#2542B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2542B2

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2542B2	#FFFFFF	#000000	##FFFFFF
##2542B2	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B6

Deuteranopia (green-blind)

#0047B0

Tritanopia (blue-blind)

#005F74

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2542b2;
/* rgb */ color: rgb(37, 66, 178);
/* oklch */ color: oklch(43.4% 0.181 267.0);

Tailwind

colors: {
  custom: {
    50: '#7776ca',
    500: '#2542b2',
    950: '#000000',
  },
}

SCSS

$custom: #2542b2;
$custom-light: #7776ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2542b2",
  "rgb": {
    "r": 37,
    "g": 66,
    "b": 178
  },
  "hsl": {
    "h": 227.66,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.43365,
    "c": 0.18069,
    "h": 267
  },
  "luminance": 0.07504
}

Semantic roles & 50–950 ramp

primary

#2542B2

secondary

#C8B56B

accent

#C63FE9

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2542B2

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

Preview Lab → · Contrast checker → · Palette generator →