#1B1474#1B1474

#1B1474 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.7% C 0.153 H 274.1°. Best body text is #FFFFFF at 15.01:1 contrast (WCAG AA passes).

Color values

HEX	#1B1474
RGB	rgb(27, 20, 116)
HSL	hsl(244, 71%, 27%)
HSV	hsv(244, 83%, 45%)
CMYK	cmyk(76.7%, 82.8%, 0%, 54.5%)
CIE-LAB	lab(15.46, 36.19, -52.83)
CIE-LCH	lch(15.46, 64.03, 304.41°)
OKLab	oklab(28.7% 0.011 -0.1528)
OKLCH	oklch(28.7% 0.153 274.1)
XYZ	xyz(3.8535, 1.9939, 16.7014)
Luminance	0.0199 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1474 #6D7414

analogous

#143D74 #1B1474 #4B1474

triadic

#1B1474 #741B14 #14741B

tetradic

#1B1474 #74143D #6D7414 #14744B

square

#1B1474 #74143D #6D7414 #14744B

split-complementary

#1B1474 #744B14 #3D7414

monochromatic

#06051A #0F0B40 #1B1474 #271DA8 #3528DA

Accessibility & contrast

On white

15.01

#1B1474 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#1B1474 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1474

15.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1474	#FFFFFF	#000000	##FFFFFF
##1B1474	1.00	15.01	1.40	15.01
#FFFFFF	15.01	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B77

Deuteranopia (green-blind)

#002272

Tritanopia (blue-blind)

#003244

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1b1474;
/* rgb */ color: rgb(27, 20, 116);
/* oklch */ color: oklch(28.7% 0.153 274.1);

Tailwind

colors: {
  custom: {
    50: '#68549d',
    500: '#1b1474',
    950: '#000000',
  },
}

SCSS

$custom: #1b1474;
$custom-light: #68549d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1474",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 116
  },
  "hsl": {
    "h": 244.375,
    "s": 70.588,
    "l": 26.667
  },
  "oklch": {
    "l": 0.28704,
    "c": 0.15319,
    "h": 274.1
  },
  "luminance": 0.01994
}

Semantic roles & 50–950 ramp

primary

#1B1474

secondary

#A2AA3A

accent

#ED3AE0

background

#F6F4F9

surface

#ECE8F2

border

#C7C4CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1B1474

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

Preview Lab → · Contrast checker → · Palette generator →