#1B48AE#1B48AE

#1B48AE is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.8% C 0.171 H 263.2°. Best body text is #FFFFFF at 8.12:1 contrast (WCAG AA passes).

Color values

HEX	#1B48AE
RGB	rgb(27, 72, 174)
HSL	hsl(222, 73%, 39%)
HSV	hsv(222, 84%, 68%)
CMYK	cmyk(84.5%, 58.6%, 0%, 31.8%)
CIE-LAB	lab(33.82, 24.45, -58.55)
CIE-LCH	lch(33.82, 63.45, 292.67°)
OKLab	oklab(43.83% -0.0202 -0.1693)
OKLCH	oklch(43.83% 0.171 263.2)
XYZ	xyz(10.4066, 7.9224, 41.0169)
Luminance	0.0792 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B48AE #AE811B

analogous

#1B91AE #1B48AE #381BAE

triadic

#1B48AE #AE1B48 #48AE1B

tetradic

#1B48AE #AE1B91 #AE811B #1BAE38

square

#1B48AE #AE1B91 #AE811B #1BAE38

split-complementary

#1B48AE #AE381B #91AE1B

monochromatic

#0B1C44 #133279 #1B48AE #2860DE #5D87E6

Accessibility & contrast

On white

8.12

#1B48AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1B48AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B48AE

8.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B48AE	#FFFFFF	#000000	##FFFFFF
##1B48AE	1.00	8.12	2.58	8.12
#FFFFFF	8.12	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B1

Deuteranopia (green-blind)

#0049AC

Tritanopia (blue-blind)

#006274

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1b48ae;
/* rgb */ color: rgb(27, 72, 174);
/* oklch */ color: oklch(43.8% 0.171 263.2);

Tailwind

colors: {
  custom: {
    50: '#737ac7',
    500: '#1b48ae',
    950: '#000000',
  },
}

SCSS

$custom: #1b48ae;
$custom-light: #737ac7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b48ae",
  "rgb": {
    "r": 27,
    "g": 72,
    "b": 174
  },
  "hsl": {
    "h": 221.633,
    "s": 73.134,
    "l": 39.412
  },
  "oklch": {
    "l": 0.43831,
    "c": 0.1705,
    "h": 263.2
  },
  "luminance": 0.07924
}

Semantic roles & 50–950 ramp

primary

#1B48AE

secondary

#CAA85B

accent

#B838F0

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1B48AE

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

Preview Lab → · Contrast checker → · Palette generator →