#1B125F#1B125F

#1B125F is a dark, vivid blue. Relative luminance 0.015; OKLCH L 25.9% C 0.128 H 277.9°. Best body text is #FFFFFF at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#1B125F
RGB	rgb(27, 18, 95)
HSL	hsl(247, 68%, 22%)
HSV	hsv(247, 81%, 37%)
CMYK	cmyk(71.6%, 81.1%, 0%, 62.7%)
CIE-LAB	lab(12.55, 30.10, -43.83)
CIE-LCH	lch(12.55, 53.17, 304.49°)
OKLab	oklab(25.93% 0.0176 -0.1266)
OKLCH	oklch(25.93% 0.128 277.9)
XYZ	xyz(2.7332, 1.4916, 10.9681)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B125F #565F12

analogous

#12305F #1B125F #42125F

triadic

#1B125F #5F1B12 #125F1B

tetradic

#1B125F #5F1230 #565F12 #125F42

square

#1B125F #5F1230 #565F12 #125F42

split-complementary

#1B125F #5F4212 #305F12

monochromatic

#07051A #0C082C #1B125F #2A1C92 #3825C6

Accessibility & contrast

On white

16.17

#1B125F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#1B125F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B125F

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B125F	#FFFFFF	#000000	##FFFFFF
##1B125F	1.00	16.17	1.30	16.17
#FFFFFF	16.17	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002461

Deuteranopia (green-blind)

#001D5E

Tritanopia (blue-blind)

#002838

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #1b125f;
/* rgb */ color: rgb(27, 18, 95);
/* oklch */ color: oklch(25.9% 0.128 277.9);

Tailwind

colors: {
  custom: {
    50: '#63518d',
    500: '#1b125f',
    950: '#000000',
  },
}

SCSS

$custom: #1b125f;
$custom-light: #63518d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b125f",
  "rgb": {
    "r": 27,
    "g": 18,
    "b": 95
  },
  "hsl": {
    "h": 247.013,
    "s": 68.142,
    "l": 22.157
  },
  "oklch": {
    "l": 0.25934,
    "c": 0.12781,
    "h": 277.9
  },
  "luminance": 0.01492
}

Semantic roles & 50–950 ramp

primary

#1B125F

secondary

#8C9736

accent

#EB3DD7

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B125F

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

Preview Lab → · Contrast checker → · Palette generator →