#2749B1#2749B1

#2749B1 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.7% C 0.170 H 265.9°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#2749B1
RGB	rgb(39, 73, 177)
HSL	hsl(225, 64%, 42%)
HSV	hsv(225, 78%, 69%)
CMYK	cmyk(78%, 58.8%, 0%, 30.6%)
CIE-LAB	lab(34.74, 26.07, -58.81)
CIE-LCH	lch(34.74, 64.33, 293.91°)
OKLab	oklab(44.71% -0.0123 -0.1699)
OKLCH	oklch(44.71% 0.17 265.9)
XYZ	xyz(11.1523, 8.3695, 42.6142)
Luminance	0.0837 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2749B1 #B18F27

analogous

#278EB1 #2749B1 #4A27B1

triadic

#2749B1 #B12749 #49B127

tetradic

#2749B1 #B1278E #B18F27 #27B14A

square

#2749B1 #B1278E #B18F27 #27B14A

split-complementary

#2749B1 #B14A27 #8EB127

monochromatic

#11204D #1C347F #2749B1 #4065D5 #728DE0

Accessibility & contrast

On white

7.85

#2749B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#2749B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2749B1

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2749B1	#FFFFFF	#000000	##FFFFFF
##2749B1	1.00	7.85	2.67	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B4

Deuteranopia (green-blind)

#004CAF

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #2749b1;
/* rgb */ color: rgb(39, 73, 177);
/* oklch */ color: oklch(44.7% 0.170 265.9);

Tailwind

colors: {
  custom: {
    50: '#777bc9',
    500: '#2749b1',
    950: '#000000',
  },
}

SCSS

$custom: #2749b1;
$custom-light: #777bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2749b1",
  "rgb": {
    "r": 39,
    "g": 73,
    "b": 177
  },
  "hsl": {
    "h": 225.217,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.44712,
    "c": 0.17031,
    "h": 265.9
  },
  "luminance": 0.08371
}

Semantic roles & 50–950 ramp

primary

#2749B1

secondary

#C7B16D

accent

#BE41E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2749B1

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

Preview Lab → · Contrast checker → · Palette generator →