#1F185D#1F185D

#1F185D is a dark, moderate blue. Relative luminance 0.017; OKLCH L 27.0% C 0.117 H 279.7°. Best body text is #FFFFFF at 15.59:1 contrast (WCAG AA passes).

Color values

HEX	#1F185D
RGB	rgb(31, 24, 93)
HSL	hsl(246, 59%, 23%)
HSV	hsv(246, 74%, 36%)
CMYK	cmyk(66.7%, 74.2%, 0%, 63.5%)
CIE-LAB	lab(14.03, 26.21, -40.05)
CIE-LCH	lch(14.03, 47.86, 303.20°)
OKLab	oklab(27.01% 0.0197 -0.1155)
OKLCH	oklch(27.01% 0.117 279.7)
XYZ	xyz(2.8669, 1.7347, 10.5376)
Luminance	0.0174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F185D #565D18

analogous

#18335D #1F185D #41185D

triadic

#1F185D #5D1F18 #185D1F

tetradic

#1F185D #5D1833 #565D18 #185D41

square

#1F185D #5D1833 #565D18 #185D41

split-complementary

#1F185D #5D4118 #335D18

monochromatic

#080618 #0F0B2C #1F185D #2F258E #3F31BE

Accessibility & contrast

On white

15.59

#1F185D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#1F185D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F185D

15.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F185D	#FFFFFF	#000000	##FFFFFF
##1F185D	1.00	15.59	1.35	15.59
#FFFFFF	15.59	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265F

Deuteranopia (green-blind)

#00215C

Tritanopia (blue-blind)

#002A38

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1f185d;
/* rgb */ color: rgb(31, 24, 93);
/* oklch */ color: oklch(27.0% 0.117 279.7);

Tailwind

colors: {
  custom: {
    50: '#64558c',
    500: '#1f185d',
    950: '#000000',
  },
}

SCSS

$custom: #1f185d;
$custom-light: #64558c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f185d",
  "rgb": {
    "r": 31,
    "g": 24,
    "b": 93
  },
  "hsl": {
    "h": 246.087,
    "s": 58.974,
    "l": 22.941
  },
  "oklch": {
    "l": 0.27005,
    "c": 0.11714,
    "h": 279.7
  },
  "luminance": 0.01735
}

Semantic roles & 50–950 ramp

primary

#1F185D

secondary

#8B933D

accent

#E246D2

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #1F185D

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

Preview Lab → · Contrast checker → · Palette generator →