#1F1F5F#1F1F5F

#1F1F5F is a dark, moderate blue. Relative luminance 0.021; OKLCH L 28.5% C 0.111 H 276.7°. Best body text is #FFFFFF at 14.79:1 contrast (WCAG AA passes).

Color values

HEX	#1F1F5F
RGB	rgb(31, 31, 95)
HSL	hsl(240, 51%, 25%)
HSV	hsv(240, 67%, 37%)
CMYK	cmyk(67.4%, 67.4%, 0%, 62.7%)
CIE-LAB	lab(15.99, 22.21, -38.18)
CIE-LCH	lch(15.99, 44.16, 300.19°)
OKLab	oklab(28.49% 0.013 -0.11)
OKLCH	oklch(28.49% 0.111 276.7)
XYZ	xyz(3.1199, 2.0973, 11.0646)
Luminance	0.0210 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1F5F #5F5F1F

analogous

#1F3F5F #1F1F5F #3F1F5F

triadic

#1F1F5F #5F1F1F #1F5F1F

tetradic

#1F1F5F #5F1F3F #5F5F1F #1F5F3F

square

#1F1F5F #5F1F3F #5F5F1F #1F5F3F

split-complementary

#1F1F5F #5F3F1F #3F5F1F

monochromatic

#080817 #101031 #1F1F5F #2E2E8D #3D3DBB

Accessibility & contrast

On white

14.79

#1F1F5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#1F1F5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1F5F

14.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1F5F	#FFFFFF	#000000	##FFFFFF
##1F1F5F	1.00	14.79	1.42	14.79
#FFFFFF	14.79	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B61

Deuteranopia (green-blind)

#00255E

Tritanopia (blue-blind)

#002F3B

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1f1f5f;
/* rgb */ color: rgb(31, 31, 95);
/* oklch */ color: oklch(28.5% 0.111 276.7);

Tailwind

colors: {
  custom: {
    50: '#635a8d',
    500: '#1f1f5f',
    950: '#000000',
  },
}

SCSS

$custom: #1f1f5f;
$custom-light: #635a8d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1f5f",
  "rgb": {
    "r": 31,
    "g": 31,
    "b": 95
  },
  "hsl": {
    "h": 240,
    "s": 50.794,
    "l": 24.706
  },
  "oklch": {
    "l": 0.28487,
    "c": 0.11074,
    "h": 276.7
  },
  "luminance": 0.02098
}

Semantic roles & 50–950 ramp

primary

#1F1F5F

secondary

#949446

accent

#DA4EDA

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06040C

muted

#7A797D

Preview Lab

Preview with #1F1F5F

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

Preview Lab → · Contrast checker → · Palette generator →