#1F1966#1F1966

#1F1966 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.1% C 0.128 H 277.7°. Best body text is #FFFFFF at 15.12:1 contrast (WCAG AA passes).

Color values

HEX	#1F1966
RGB	rgb(31, 25, 102)
HSL	hsl(245, 61%, 25%)
HSV	hsv(245, 75%, 40%)
CMYK	cmyk(69.6%, 75.5%, 0%, 60%)
CIE-LAB	lab(15.20, 28.80, -44.10)
CIE-LCH	lch(15.20, 52.68, 303.15°)
OKLab	oklab(28.13% 0.0171 -0.1273)
OKLCH	oklch(28.13% 0.128 277.7)
XYZ	xyz(3.3102, 1.9456, 12.7689)
Luminance	0.0195 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1966 #606619

analogous

#193A66 #1F1966 #451966

triadic

#1F1966 #661F19 #19661F

tetradic

#1F1966 #66193A #606619 #196645

square

#1F1966 #66193A #606619 #196645

split-complementary

#1F1966 #664519 #3A6619

monochromatic

#070619 #100D35 #1F1966 #2E2597 #3D31C8

Accessibility & contrast

On white

15.12

#1F1966 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#1F1966 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1966

15.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1966	#FFFFFF	#000000	##FFFFFF
##1F1966	1.00	15.12	1.39	15.12
#FFFFFF	15.12	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002968

Deuteranopia (green-blind)

#002365

Tritanopia (blue-blind)

#002E3D

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1f1966;
/* rgb */ color: rgb(31, 25, 102);
/* oklch */ color: oklch(28.1% 0.128 277.7);

Tailwind

colors: {
  custom: {
    50: '#665792',
    500: '#1f1966',
    950: '#000000',
  },
}

SCSS

$custom: #1f1966;
$custom-light: #665792;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1966",
  "rgb": {
    "r": 31,
    "g": 25,
    "b": 102
  },
  "hsl": {
    "h": 244.675,
    "s": 60.63,
    "l": 24.902
  },
  "oklch": {
    "l": 0.28129,
    "c": 0.12849,
    "h": 277.7
  },
  "luminance": 0.01946
}

Semantic roles & 50–950 ramp

primary

#1F1966

secondary

#959C3F

accent

#E444D7

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #1F1966

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

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