#1F135F#1F135F

#1F135F is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.4% C 0.126 H 280.6°. Best body text is #FFFFFF at 15.95:1 contrast (WCAG AA passes).

Color values

HEX	#1F135F
RGB	rgb(31, 19, 95)
HSL	hsl(249, 67%, 22%)
HSV	hsv(249, 80%, 37%)
CMYK	cmyk(67.4%, 80%, 0%, 62.7%)
CIE-LAB	lab(13.13, 30.02, -42.87)
CIE-LCH	lch(13.13, 52.34, 305.00°)
OKLab	oklab(26.43% 0.0232 -0.1237)
OKLCH	oklch(26.43% 0.126 280.6)
XYZ	xyz(2.8629, 1.5831, 10.9790)
Luminance	0.0158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F135F #535F13

analogous

#132D5F #1F135F #45135F

triadic

#1F135F #5F1F13 #135F1F

tetradic

#1F135F #5F132D #535F13 #135F45

square

#1F135F #5F132D #535F13 #135F45

split-complementary

#1F135F #5F4513 #2D5F13

monochromatic

#08051A #0E092C #1F135F #301D92 #4027C5

Accessibility & contrast

On white

15.95

#1F135F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#1F135F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F135F

15.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F135F	#FFFFFF	#000000	##FFFFFF
##1F135F	1.00	15.95	1.32	15.95
#FFFFFF	15.95	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002461

Deuteranopia (green-blind)

#001F5E

Tritanopia (blue-blind)

#002938

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1f135f;
/* rgb */ color: rgb(31, 19, 95);
/* oklch */ color: oklch(26.4% 0.126 280.6);

Tailwind

colors: {
  custom: {
    50: '#65528d',
    500: '#1f135f',
    950: '#000000',
  },
}

SCSS

$custom: #1f135f;
$custom-light: #65528d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f135f",
  "rgb": {
    "r": 31,
    "g": 19,
    "b": 95
  },
  "hsl": {
    "h": 249.474,
    "s": 66.667,
    "l": 22.353
  },
  "oklch": {
    "l": 0.26429,
    "c": 0.12585,
    "h": 280.6
  },
  "luminance": 0.01583
}

Semantic roles & 50–950 ramp

primary

#1F135F

secondary

#889737

accent

#EA3ECF

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1F135F

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

Preview Lab → · Contrast checker → · Palette generator →