#2745B1#2745B1

#2745B1 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.9% C 0.175 H 266.8°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#2745B1
RGB	rgb(39, 69, 177)
HSL	hsl(227, 64%, 42%)
HSV	hsv(227, 78%, 69%)
CMYK	cmyk(78%, 61%, 0%, 30.6%)
CIE-LAB	lab(33.69, 28.72, -60.52)
CIE-LCH	lch(33.69, 66.99, 295.39°)
OKLab	oklab(43.93% -0.0097 -0.1749)
OKLCH	oklch(43.93% 0.175 266.8)
XYZ	xyz(10.8979, 7.8607, 42.5294)
Luminance	0.0786 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2745B1 #B19327

analogous

#278AB1 #2745B1 #4E27B1

triadic

#2745B1 #B12745 #45B127

tetradic

#2745B1 #B1278A #B19327 #27B14E

square

#2745B1 #B1278A #B19327 #27B14E

split-complementary

#2745B1 #B14E27 #8AB127

monochromatic

#111E4D #1C317F #2745B1 #4061D5 #728AE0

Accessibility & contrast

On white

8.16

#2745B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#2745B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2745B1

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2745B1	#FFFFFF	#000000	##FFFFFF
##2745B1	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B5

Deuteranopia (green-blind)

#0049AF

Tritanopia (blue-blind)

#006174

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2745b1;
/* rgb */ color: rgb(39, 69, 177);
/* oklch */ color: oklch(43.9% 0.175 266.8);

Tailwind

colors: {
  custom: {
    50: '#7778c9',
    500: '#2745b1',
    950: '#000000',
  },
}

SCSS

$custom: #2745b1;
$custom-light: #7778c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2745b1",
  "rgb": {
    "r": 39,
    "g": 69,
    "b": 177
  },
  "hsl": {
    "h": 226.957,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.43929,
    "c": 0.17522,
    "h": 266.8
  },
  "luminance": 0.07862
}

Semantic roles & 50–950 ramp

primary

#2745B1

secondary

#C7B36D

accent

#C341E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2745B1

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

Preview Lab → · Contrast checker → · Palette generator →