#1B48A6#1B48A6

#1B48A6 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.1% C 0.160 H 262.5°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#1B48A6
RGB	rgb(27, 72, 166)
HSL	hsl(221, 72%, 38%)
HSV	hsv(221, 84%, 65%)
CMYK	cmyk(83.7%, 56.6%, 0%, 34.9%)
CIE-LAB	lab(33.18, 21.28, -54.81)
CIE-LCH	lch(33.18, 58.80, 291.22°)
OKLab	oklab(43.15% -0.0208 -0.1583)
OKLCH	oklch(43.15% 0.16 262.5)
XYZ	xyz(9.6498, 7.6197, 37.0312)
Luminance	0.0762 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B48A6 #A6791B

analogous

#1B8DA6 #1B48A6 #341BA6

triadic

#1B48A6 #A61B48 #48A61B

tetradic

#1B48A6 #A61B8D #A6791B #1BA634

square

#1B48A6 #A61B8D #A6791B #1BA634

split-complementary

#1B48A6 #A6341B #8DA61B

monochromatic

#0A1A3D #123171 #1B48A6 #245FDB #5885E4

Accessibility & contrast

On white

8.32

#1B48A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#1B48A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B48A6

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B48A6	#FFFFFF	#000000	##FFFFFF
##1B48A6	1.00	8.32	2.52	8.32
#FFFFFF	8.32	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055A9

Deuteranopia (green-blind)

#0048A4

Tritanopia (blue-blind)

#006070

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b48a6;
/* rgb */ color: rgb(27, 72, 166);
/* oklch */ color: oklch(43.1% 0.160 262.5);

Tailwind

colors: {
  custom: {
    50: '#717ac1',
    500: '#1b48a6',
    950: '#000000',
  },
}

SCSS

$custom: #1b48a6;
$custom-light: #717ac1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b48a6",
  "rgb": {
    "r": 27,
    "g": 72,
    "b": 166
  },
  "hsl": {
    "h": 220.576,
    "s": 72.021,
    "l": 37.843
  },
  "oklch": {
    "l": 0.43146,
    "c": 0.15969,
    "h": 262.5
  },
  "luminance": 0.07621
}

Semantic roles & 50–950 ramp

primary

#1B48A6

secondary

#C7A256

accent

#B439EF

background

#F7F7FC

surface

#EDEDF8

border

#C8C8D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1B48A6

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

Preview Lab → · Contrast checker → · Palette generator →