#2547A8#2547A8

#2547A8 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.5% C 0.161 H 265.4°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#2547A8
RGB	rgb(37, 71, 168)
HSL	hsl(224, 64%, 40%)
HSV	hsv(224, 78%, 66%)
CMYK	cmyk(78%, 57.7%, 0%, 34.1%)
CIE-LAB	lab(33.41, 23.73, -55.63)
CIE-LCH	lch(33.41, 60.48, 293.10°)
OKLab	oklab(43.46% -0.0129 -0.1606)
OKLCH	oklch(43.46% 0.161 265.4)
XYZ	xyz(10.0816, 7.7258, 37.9981)
Luminance	0.0773 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2547A8 #A88625

analogous

#2589A8 #2547A8 #4425A8

triadic

#2547A8 #A82547 #47A825

tetradic

#2547A8 #A82589 #A88625 #25A844

square

#2547A8 #A82589 #A88625 #25A844

split-complementary

#2547A8 #A84425 #89A825

monochromatic

#0F1D44 #1A3276 #2547A8 #3760D3 #6988DE

Accessibility & contrast

On white

8.25

#2547A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#2547A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2547A8

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2547A8	#FFFFFF	#000000	##FFFFFF
##2547A8	1.00	8.25	2.55	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AB

Deuteranopia (green-blind)

#0049A6

Tritanopia (blue-blind)

#005F70

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2547a8;
/* rgb */ color: rgb(37, 71, 168);
/* oklch */ color: oklch(43.5% 0.161 265.4);

Tailwind

colors: {
  custom: {
    50: '#7479c3',
    500: '#2547a8',
    950: '#000000',
  },
}

SCSS

$custom: #2547a8;
$custom-light: #7479c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2547a8",
  "rgb": {
    "r": 37,
    "g": 71,
    "b": 168
  },
  "hsl": {
    "h": 224.427,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.43463,
    "c": 0.1611,
    "h": 265.4
  },
  "luminance": 0.07727
}

Semantic roles & 50–950 ramp

primary

#2547A8

secondary

#C4AB65

accent

#BC41E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #2547A8

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

Preview Lab → · Contrast checker → · Palette generator →