#1B125A#1B125A

#1B125A is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.4% C 0.121 H 279.0°. Best body text is #FFFFFF at 16.40:1 contrast (WCAG AA passes).

Color values

HEX	#1B125A
RGB	rgb(27, 18, 90)
HSL	hsl(248, 67%, 21%)
HSV	hsv(248, 80%, 35%)
CMYK	cmyk(70%, 80%, 0%, 64.7%)
CIE-LAB	lab(11.98, 28.35, -41.41)
CIE-LCH	lch(11.98, 50.19, 304.39°)
OKLab	oklab(25.36% 0.0189 -0.1196)
OKLCH	oklch(25.36% 0.121 279)
XYZ	xyz(2.5132, 1.4036, 9.8094)
Luminance	0.0140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B125A #515A12

analogous

#122D5A #1B125A #3F125A

triadic

#1B125A #5A1B12 #125A1B

tetradic

#1B125A #5A122D #515A12 #125A3F

square

#1B125A #5A122D #515A12 #125A3F

split-complementary

#1B125A #5A3F12 #2D5A12

monochromatic

#08051A #0C0827 #1B125A #2A1C8D #3A26C0

Accessibility & contrast

On white

16.40

#1B125A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#1B125A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B125A

16.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B125A	#FFFFFF	#000000	##FFFFFF
##1B125A	1.00	16.40	1.28	16.40
#FFFFFF	16.40	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00225C

Deuteranopia (green-blind)

#001D59

Tritanopia (blue-blind)

#002735

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #1b125a;
/* rgb */ color: rgb(27, 18, 90);
/* oklch */ color: oklch(25.4% 0.121 279.0);

Tailwind

colors: {
  custom: {
    50: '#625189',
    500: '#1b125a',
    950: '#000000',
  },
}

SCSS

$custom: #1b125a;
$custom-light: #625189;
$custom-dark: #000000;

JSON

{
  "hex": "#1b125a",
  "rgb": {
    "r": 27,
    "g": 18,
    "b": 90
  },
  "hsl": {
    "h": 247.5,
    "s": 66.667,
    "l": 21.176
  },
  "oklch": {
    "l": 0.25359,
    "c": 0.12105,
    "h": 279
  },
  "luminance": 0.01404
}

Semantic roles & 50–950 ramp

primary

#1B125A

secondary

#879335

accent

#EA3ED4

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B125A

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

Preview Lab → · Contrast checker → · Palette generator →