#1F13A0#1F13A0

#1F13A0 is a dark, highly saturated blue. Relative luminance 0.033; OKLCH L 34.3% C 0.205 H 271.3°. Best body text is #FFFFFF at 12.66:1 contrast (WCAG AA passes).

Color values

HEX	#1F13A0
RGB	rgb(31, 19, 160)
HSL	hsl(245, 79%, 35%)
HSV	hsv(245, 88%, 63%)
CMYK	cmyk(80.6%, 88.1%, 0%, 37.3%)
CIE-LAB	lab(21.19, 50.70, -70.92)
CIE-LCH	lch(21.19, 87.18, 305.56°)
OKLab	oklab(34.33% 0.0045 -0.2051)
OKLCH	oklch(34.33% 0.205 271.3)
XYZ	xyz(7.1410, 3.2943, 33.5104)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F13A0 #94A013

analogous

#134EA0 #1F13A0 #6513A0

triadic

#1F13A0 #A01F13 #13A01F

tetradic

#1F13A0 #A0134E #94A013 #13A065

square

#1F13A0 #A0134E #94A013 #13A065

split-complementary

#1F13A0 #A06513 #4EA013

monochromatic

#0A0633 #140D69 #1F13A0 #2A19D7 #5345E9

Accessibility & contrast

On white

12.66

#1F13A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#1F13A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F13A0

12.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F13A0	#FFFFFF	#000000	##FFFFFF
##1F13A0	1.00	12.66	1.66	12.66
#FFFFFF	12.66	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0039A4

Deuteranopia (green-blind)

#002C9E

Tritanopia (blue-blind)

#00435E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f13a0;
/* rgb */ color: rgb(31, 19, 160);
/* oklch */ color: oklch(34.3% 0.205 271.3);

Tailwind

colors: {
  custom: {
    50: '#7558be',
    500: '#1f13a0',
    950: '#000000',
  },
}

SCSS

$custom: #1f13a0;
$custom-light: #7558be;
$custom-dark: #000000;

JSON

{
  "hex": "#1f13a0",
  "rgb": {
    "r": 31,
    "g": 19,
    "b": 160
  },
  "hsl": {
    "h": 245.106,
    "s": 78.771,
    "l": 35.098
  },
  "oklch": {
    "l": 0.34331,
    "c": 0.20514,
    "h": 271.3
  },
  "luminance": 0.03295
}

Semantic roles & 50–950 ramp

primary

#1F13A0

secondary

#BEC945

accent

#F533E5

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1F13A0

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

Preview Lab → · Contrast checker → · Palette generator →