#1547B3#1547B3

#1547B3 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.9% C 0.180 H 262.7°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#1547B3
RGB	rgb(21, 71, 179)
HSL	hsl(221, 79%, 39%)
HSV	hsv(221, 88%, 70%)
CMYK	cmyk(88.3%, 60.3%, 0%, 29.8%)
CIE-LAB	lab(33.81, 26.68, -61.53)
CIE-LCH	lch(33.81, 67.07, 293.44°)
OKLab	oklab(43.91% -0.0227 -0.1781)
OKLCH	oklch(43.91% 0.18 262.7)
XYZ	xyz(10.6963, 7.9192, 43.6039)
Luminance	0.0792 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1547B3 #B38115

analogous

#1596B3 #1547B3 #3215B3

triadic

#1547B3 #B31547 #47B315

tetradic

#1547B3 #B31596 #B38115 #15B332

square

#1547B3 #B31596 #B38115 #15B332

split-complementary

#1547B3 #B33215 #96B315

monochromatic

#081C45 #0F317C #1547B3 #205FE5 #5786EB

Accessibility & contrast

On white

8.13

#1547B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1547B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1547B3

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1547B3	#FFFFFF	#000000	##FFFFFF
##1547B3	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B7

Deuteranopia (green-blind)

#0049B1

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1547b3;
/* rgb */ color: rgb(21, 71, 179);
/* oklch */ color: oklch(43.9% 0.180 262.7);

Tailwind

colors: {
  custom: {
    50: '#7379cb',
    500: '#1547b3',
    950: '#000000',
  },
}

SCSS

$custom: #1547b3;
$custom-light: #7379cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1547b3",
  "rgb": {
    "r": 21,
    "g": 71,
    "b": 179
  },
  "hsl": {
    "h": 221.013,
    "s": 79,
    "l": 39.216
  },
  "oklch": {
    "l": 0.43911,
    "c": 0.17959,
    "h": 262.7
  },
  "luminance": 0.07921
}

Semantic roles & 50–950 ramp

primary

#1547B3

secondary

#CEA856

accent

#B832F5

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1547B3

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

Preview Lab → · Contrast checker → · Palette generator →