#1F1590#1F1590

#1F1590 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.5% C 0.185 H 272.6°. Best body text is #FFFFFF at 13.39:1 contrast (WCAG AA passes).

Color values

HEX	#1F1590
RGB	rgb(31, 21, 144)
HSL	hsl(245, 75%, 32%)
HSV	hsv(245, 85%, 56%)
CMYK	cmyk(78.5%, 85.4%, 0%, 43.5%)
CIE-LAB	lab(19.39, 45.03, -64.03)
CIE-LCH	lch(19.39, 78.28, 305.12°)
OKLab	oklab(32.52% 0.0084 -0.1852)
OKLCH	oklch(32.52% 0.185 272.6)
XYZ	xyz(5.8656, 2.8406, 26.6193)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1590 #869015

analogous

#154990 #1F1590 #5D1590

triadic

#1F1590 #901F15 #15901F

tetradic

#1F1590 #901549 #869015 #15905D

square

#1F1590 #901549 #869015 #15905D

split-complementary

#1F1590 #905D15 #499015

monochromatic

#080525 #140D5B #1F1590 #2A1DC5 #4A3DE3

Accessibility & contrast

On white

13.39

#1F1590 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1F1590 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1590

13.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1590	#FFFFFF	#000000	##FFFFFF
##1F1590	1.00	13.39	1.57	13.39
#FFFFFF	13.39	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003593

Deuteranopia (green-blind)

#00298E

Tritanopia (blue-blind)

#003D55

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1f1590;
/* rgb */ color: rgb(31, 21, 144);
/* oklch */ color: oklch(32.5% 0.185 272.6);

Tailwind

colors: {
  custom: {
    50: '#7157b2',
    500: '#1f1590',
    950: '#000000',
  },
}

SCSS

$custom: #1f1590;
$custom-light: #7157b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1590",
  "rgb": {
    "r": 31,
    "g": 21,
    "b": 144
  },
  "hsl": {
    "h": 244.878,
    "s": 74.545,
    "l": 32.353
  },
  "oklch": {
    "l": 0.32515,
    "c": 0.18541,
    "h": 272.6
  },
  "luminance": 0.02841
}

Semantic roles & 50–950 ramp

primary

#1F1590

secondary

#B8C23E

accent

#F137E2

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1F1590

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

Preview Lab → · Contrast checker → · Palette generator →