#1F1775#1F1775

#1F1775 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.5% C 0.151 H 275.7°. Best body text is #FFFFFF at 14.61:1 contrast (WCAG AA passes).

Color values

HEX	#1F1775
RGB	rgb(31, 23, 117)
HSL	hsl(245, 67%, 27%)
HSV	hsv(245, 80%, 46%)
CMYK	cmyk(73.5%, 80.3%, 0%, 54.1%)
CIE-LAB	lab(16.44, 35.24, -51.83)
CIE-LCH	lch(16.44, 62.67, 304.21°)
OKLab	oklab(29.51% 0.0149 -0.1498)
OKLCH	oklch(29.51% 0.151 275.7)
XYZ	xyz(4.0813, 2.1881, 17.0334)
Luminance	0.0219 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1775 #6D7517

analogous

#173E75 #1F1775 #4E1775

triadic

#1F1775 #751F17 #17751F

tetradic

#1F1775 #75173E #6D7517 #17754E

square

#1F1775 #75173E #6D7517 #17754E

split-complementary

#1F1775 #754E17 #3E7517

monochromatic

#07051A #110D42 #1F1775 #2D21A8 #3E30D6

Accessibility & contrast

On white

14.61

#1F1775 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1F1775 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1775

14.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1775	#FFFFFF	#000000	##FFFFFF
##1F1775	1.00	14.61	1.44	14.61
#FFFFFF	14.61	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D78

Deuteranopia (green-blind)

#002473

Tritanopia (blue-blind)

#003345

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f1775;
/* rgb */ color: rgb(31, 23, 117);
/* oklch */ color: oklch(29.5% 0.151 275.7);

Tailwind

colors: {
  custom: {
    50: '#6a569e',
    500: '#1f1775',
    950: '#000000',
  },
}

SCSS

$custom: #1f1775;
$custom-light: #6a569e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1775",
  "rgb": {
    "r": 31,
    "g": 23,
    "b": 117
  },
  "hsl": {
    "h": 245.106,
    "s": 67.143,
    "l": 27.451
  },
  "oklch": {
    "l": 0.29509,
    "c": 0.15058,
    "h": 275.7
  },
  "luminance": 0.02188
}

Semantic roles & 50–950 ramp

primary

#1F1775

secondary

#A1AA3D

accent

#EA3EDB

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1F1775

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

Preview Lab → · Contrast checker → · Palette generator →