#2748B6#2748B6

#2748B6 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.9% C 0.178 H 266.3°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#2748B6
RGB	rgb(39, 72, 182)
HSL	hsl(226, 65%, 43%)
HSV	hsv(226, 79%, 71%)
CMYK	cmyk(78.6%, 60.4%, 0%, 28.6%)
CIE-LAB	lab(34.89, 28.63, -61.53)
CIE-LCH	lch(34.89, 67.87, 294.96°)
OKLab	oklab(44.95% -0.0115 -0.1779)
OKLCH	oklch(44.95% 0.178 266.3)
XYZ	xyz(11.5946, 8.4421, 45.2653)
Luminance	0.0844 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2748B6 #B69527

analogous

#278FB6 #2748B6 #4D27B6

triadic

#2748B6 #B62748 #48B627

tetradic

#2748B6 #B6278F #B69527 #27B64D

square

#2748B6 #B6278F #B69527 #27B64D

split-complementary

#2748B6 #B64D27 #8FB627

monochromatic

#112051 #1C3484 #2748B6 #4365D7 #768FE2

Accessibility & contrast

On white

7.81

#2748B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#2748B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2748B6

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2748B6	#FFFFFF	#000000	##FFFFFF
##2748B6	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BA

Deuteranopia (green-blind)

#004CB4

Tritanopia (blue-blind)

#006478

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #2748b6;
/* rgb */ color: rgb(39, 72, 182);
/* oklch */ color: oklch(44.9% 0.178 266.3);

Tailwind

colors: {
  custom: {
    50: '#787acd',
    500: '#2748b6',
    950: '#000000',
  },
}

SCSS

$custom: #2748b6;
$custom-light: #787acd;
$custom-dark: #000000;

JSON

{
  "hex": "#2748b6",
  "rgb": {
    "r": 39,
    "g": 72,
    "b": 182
  },
  "hsl": {
    "h": 226.154,
    "s": 64.706,
    "l": 43.333
  },
  "oklch": {
    "l": 0.44948,
    "c": 0.17823,
    "h": 266.3
  },
  "luminance": 0.08443
}

Semantic roles & 50–950 ramp

primary

#2748B6

secondary

#C9B470

accent

#C140E8

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0A0914

muted

#7C7B82

Preview Lab

Preview with #2748B6

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

Preview Lab → · Contrast checker → · Palette generator →