#1F1C8E#1F1C8E

#1F1C8E is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.1% C 0.177 H 272.2°. Best body text is #FFFFFF at 13.00:1 contrast (WCAG AA passes).

Color values

HEX	#1F1C8E
RGB	rgb(31, 28, 142)
HSL	hsl(242, 67%, 33%)
HSV	hsv(242, 80%, 56%)
CMYK	cmyk(78.2%, 80.3%, 0%, 44.3%)
CIE-LAB	lab(20.34, 40.91, -61.22)
CIE-LCH	lch(20.34, 73.63, 303.75°)
OKLab	oklab(33.1% 0.0068 -0.1772)
OKLCH	oklch(33.1% 0.177 272.2)
XYZ	xyz(5.8612, 3.0742, 25.8704)
Luminance	0.0307 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1C8E #8B8E1C

analogous

#1C528E #1F1C8E #581C8E

triadic

#1F1C8E #8E1F1C #1C8E1F

tetradic

#1F1C8E #8E1C52 #8B8E1C #1C8E58

square

#1F1C8E #8E1C52 #8B8E1C #1C8E58

split-complementary

#1F1C8E #8E581C #528E1C

monochromatic

#090828 #14125B #1F1C8E #2A26C1 #4D49DB

Accessibility & contrast

On white

13.00

#1F1C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1F1C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1C8E

13.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1C8E	#FFFFFF	#000000	##FFFFFF
##1F1C8E	1.00	13.00	1.62	13.00
#FFFFFF	13.00	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	13.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003691

Deuteranopia (green-blind)

#002B8C

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1f1c8e;
/* rgb */ color: rgb(31, 28, 142);
/* oklch */ color: oklch(33.1% 0.177 272.2);

Tailwind

colors: {
  custom: {
    50: '#705bb0',
    500: '#1f1c8e',
    950: '#000000',
  },
}

SCSS

$custom: #1f1c8e;
$custom-light: #705bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1c8e",
  "rgb": {
    "r": 31,
    "g": 28,
    "b": 142
  },
  "hsl": {
    "h": 241.579,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.331,
    "c": 0.17732,
    "h": 272.2
  },
  "luminance": 0.03075
}

Semantic roles & 50–950 ramp

primary

#1F1C8E

secondary

#BABD49

accent

#EA3EE5

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F1C8E

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

Preview Lab → · Contrast checker → · Palette generator →