#2548A7#2548A7

#2548A7 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.6% C 0.158 H 265.0°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#2548A7
RGB	rgb(37, 72, 167)
HSL	hsl(224, 64%, 40%)
HSV	hsv(224, 78%, 65%)
CMYK	cmyk(77.8%, 56.9%, 0%, 34.5%)
CIE-LAB	lab(33.60, 22.67, -54.71)
CIE-LCH	lch(33.60, 59.23, 292.51°)
OKLab	oklab(43.58% -0.0137 -0.1579)
OKLCH	oklch(43.58% 0.158 265)
XYZ	xyz(10.0529, 7.8169, 37.5307)
Luminance	0.0782 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2548A7 #A78425

analogous

#2589A7 #2548A7 #4325A7

triadic

#2548A7 #A72548 #48A725

tetradic

#2548A7 #A72589 #A78425 #25A743

square

#2548A7 #A72589 #A78425 #25A743

split-complementary

#2548A7 #A74325 #89A725

monochromatic

#0F1D43 #1A3275 #2548A7 #3761D3 #6988DE

Accessibility & contrast

On white

8.19

#2548A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#2548A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2548A7

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2548A7	#FFFFFF	#000000	##FFFFFF
##2548A7	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AA

Deuteranopia (green-blind)

#0049A5

Tritanopia (blue-blind)

#006070

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2548a7;
/* rgb */ color: rgb(37, 72, 167);
/* oklch */ color: oklch(43.6% 0.158 265.0);

Tailwind

colors: {
  custom: {
    50: '#747ac2',
    500: '#2548a7',
    950: '#000000',
  },
}

SCSS

$custom: #2548a7;
$custom-light: #747ac2;
$custom-dark: #000000;

JSON

{
  "hex": "#2548a7",
  "rgb": {
    "r": 37,
    "g": 72,
    "b": 167
  },
  "hsl": {
    "h": 223.846,
    "s": 63.725,
    "l": 40
  },
  "oklch": {
    "l": 0.43584,
    "c": 0.15847,
    "h": 265
  },
  "luminance": 0.07818
}

Semantic roles & 50–950 ramp

primary

#2548A7

secondary

#C4AA64

accent

#BA41E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #2548A7

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

Preview Lab → · Contrast checker → · Palette generator →