#1B135E#1B135E

#1B135E is a dark, vivid blue. Relative luminance 0.015; OKLCH L 26.0% C 0.125 H 277.9°. Best body text is #FFFFFF at 16.14:1 contrast (WCAG AA passes).

Color values

HEX	#1B135E
RGB	rgb(27, 19, 94)
HSL	hsl(246, 66%, 22%)
HSV	hsv(246, 80%, 37%)
CMYK	cmyk(71.3%, 79.8%, 0%, 63.1%)
CIE-LAB	lab(12.65, 29.15, -43.00)
CIE-LCH	lch(12.65, 51.95, 304.14°)
OKLab	oklab(25.97% 0.0172 -0.1242)
OKLCH	oklch(25.97% 0.125 277.9)
XYZ	xyz(2.7046, 1.5067, 10.7358)
Luminance	0.0151 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B135E #565E13

analogous

#13315E #1B135E #41135E

triadic

#1B135E #5E1B13 #135E1B

tetradic

#1B135E #5E1331 #565E13 #135E41

square

#1B135E #5E1331 #565E13 #135E41

split-complementary

#1B135E #5E4113 #315E13

monochromatic

#070519 #0C092B #1B135E #2A1D91 #3828C4

Accessibility & contrast

On white

16.14

#1B135E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#1B135E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B135E

16.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B135E	#FFFFFF	#000000	##FFFFFF
##1B135E	1.00	16.14	1.30	16.14
#FFFFFF	16.14	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002460

Deuteranopia (green-blind)

#001E5D

Tritanopia (blue-blind)

#002937

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #1b135e;
/* rgb */ color: rgb(27, 19, 94);
/* oklch */ color: oklch(26.0% 0.125 277.9);

Tailwind

colors: {
  custom: {
    50: '#63528d',
    500: '#1b135e',
    950: '#000000',
  },
}

SCSS

$custom: #1b135e;
$custom-light: #63528d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b135e",
  "rgb": {
    "r": 27,
    "g": 19,
    "b": 94
  },
  "hsl": {
    "h": 246.4,
    "s": 66.372,
    "l": 22.157
  },
  "oklch": {
    "l": 0.25967,
    "c": 0.12538,
    "h": 277.9
  },
  "luminance": 0.01507
}

Semantic roles & 50–950 ramp

primary

#1B135E

secondary

#8C9637

accent

#E93FD7

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B135E

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

Preview Lab → · Contrast checker → · Palette generator →