#1B135F#1B135F

#1B135F is a dark, vivid blue. Relative luminance 0.015; OKLCH L 26.1% C 0.127 H 277.7°. Best body text is #FFFFFF at 16.09:1 contrast (WCAG AA passes).

Color values

HEX	#1B135F
RGB	rgb(27, 19, 95)
HSL	hsl(246, 67%, 22%)
HSV	hsv(246, 80%, 37%)
CMYK	cmyk(71.6%, 80%, 0%, 62.7%)
CIE-LAB	lab(12.76, 29.51, -43.48)
CIE-LCH	lch(12.76, 52.55, 304.16°)
OKLab	oklab(26.08% 0.0169 -0.1256)
OKLCH	oklch(26.08% 0.127 277.7)
XYZ	xyz(2.7498, 1.5247, 10.9736)
Luminance	0.0152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B135F #575F13

analogous

#13315F #1B135F #41135F

triadic

#1B135F #5F1B13 #135F1B

tetradic

#1B135F #5F1331 #575F13 #135F41

square

#1B135F #5F1331 #575F13 #135F41

split-complementary

#1B135F #5F4113 #315F13

monochromatic

#07051A #0D092C #1B135F #291D92 #3827C5

Accessibility & contrast

On white

16.09

#1B135F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#1B135F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B135F

16.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B135F	#FFFFFF	#000000	##FFFFFF
##1B135F	1.00	16.09	1.31	16.09
#FFFFFF	16.09	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002461

Deuteranopia (green-blind)

#001E5E

Tritanopia (blue-blind)

#002938

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #1b135f;
/* rgb */ color: rgb(27, 19, 95);
/* oklch */ color: oklch(26.1% 0.127 277.7);

Tailwind

colors: {
  custom: {
    50: '#63528d',
    500: '#1b135f',
    950: '#000000',
  },
}

SCSS

$custom: #1b135f;
$custom-light: #63528d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b135f",
  "rgb": {
    "r": 27,
    "g": 19,
    "b": 95
  },
  "hsl": {
    "h": 246.316,
    "s": 66.667,
    "l": 22.353
  },
  "oklch": {
    "l": 0.26082,
    "c": 0.12674,
    "h": 277.7
  },
  "luminance": 0.01525
}

Semantic roles & 50–950 ramp

primary

#1B135F

secondary

#8D9737

accent

#EA3ED8

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B135F

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

Preview Lab → · Contrast checker → · Palette generator →