#1F185E#1F185E

#1F185E is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.1% C 0.119 H 279.5°. Best body text is #FFFFFF at 15.55:1 contrast (WCAG AA passes).

Color values

HEX	#1F185E
RGB	rgb(31, 24, 94)
HSL	hsl(246, 59%, 23%)
HSV	hsv(246, 74%, 37%)
CMYK	cmyk(67%, 74.5%, 0%, 63.1%)
CIE-LAB	lab(14.13, 26.57, -40.55)
CIE-LCH	lch(14.13, 48.48, 303.23°)
OKLab	oklab(27.11% 0.0195 -0.1169)
OKLCH	oklch(27.11% 0.119 279.5)
XYZ	xyz(2.9114, 1.7525, 10.7723)
Luminance	0.0175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F185E #575E18

analogous

#18345E #1F185E #42185E

triadic

#1F185E #5E1F18 #185E1F

tetradic

#1F185E #5E1834 #575E18 #185E42

square

#1F185E #5E1834 #575E18 #185E42

split-complementary

#1F185E #5E4218 #345E18

monochromatic

#080618 #0F0C2D #1F185E #2F248F #3F31C0

Accessibility & contrast

On white

15.55

#1F185E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#1F185E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F185E

15.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F185E	#FFFFFF	#000000	##FFFFFF
##1F185E	1.00	15.55	1.35	15.55
#FFFFFF	15.55	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002760

Deuteranopia (green-blind)

#00215D

Tritanopia (blue-blind)

#002B39

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1f185e;
/* rgb */ color: rgb(31, 24, 94);
/* oklch */ color: oklch(27.1% 0.119 279.5);

Tailwind

colors: {
  custom: {
    50: '#64568c',
    500: '#1f185e',
    950: '#000000',
  },
}

SCSS

$custom: #1f185e;
$custom-light: #64568c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f185e",
  "rgb": {
    "r": 31,
    "g": 24,
    "b": 94
  },
  "hsl": {
    "h": 246,
    "s": 59.322,
    "l": 23.137
  },
  "oklch": {
    "l": 0.2711,
    "c": 0.11856,
    "h": 279.5
  },
  "luminance": 0.01753
}

Semantic roles & 50–950 ramp

primary

#1F185E

secondary

#8C943D

accent

#E345D3

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #1F185E

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

Preview Lab → · Contrast checker → · Palette generator →