#1F1A87#1F1A87

#1F1A87 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.0% C 0.170 H 273.1°. Best body text is #FFFFFF at 13.50:1 contrast (WCAG AA passes).

Color values

HEX	#1F1A87
RGB	rgb(31, 26, 135)
HSL	hsl(243, 68%, 32%)
HSV	hsv(243, 81%, 53%)
CMYK	cmyk(77%, 80.7%, 0%, 47.1%)
CIE-LAB	lab(19.14, 39.65, -58.83)
CIE-LCH	lch(19.14, 70.95, 303.98°)
OKLab	oklab(32.02% 0.0092 -0.1702)
OKLCH	oklch(32.02% 0.17 273.1)
XYZ	xyz(5.3062, 2.7788, 23.1737)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1A87 #82871A

analogous

#1A4C87 #1F1A87 #561A87

triadic

#1F1A87 #871F1A #1A871F

tetradic

#1F1A87 #871A4C #82871A #1A8756

square

#1F1A87 #871A4C #82871A #1A8756

split-complementary

#1F1A87 #87561A #4C871A

monochromatic

#070620 #131054 #1F1A87 #2B24BA #4841DA

Accessibility & contrast

On white

13.50

#1F1A87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1F1A87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1A87

13.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1A87	#FFFFFF	#000000	##FFFFFF
##1F1A87	1.00	13.50	1.56	13.50
#FFFFFF	13.50	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348A

Deuteranopia (green-blind)

#002985

Tritanopia (blue-blind)

#003B50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f1a87;
/* rgb */ color: rgb(31, 26, 135);
/* oklch */ color: oklch(32.0% 0.170 273.1);

Tailwind

colors: {
  custom: {
    50: '#6e59ab',
    500: '#1f1a87',
    950: '#000000',
  },
}

SCSS

$custom: #1f1a87;
$custom-light: #6e59ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1a87",
  "rgb": {
    "r": 31,
    "g": 26,
    "b": 135
  },
  "hsl": {
    "h": 242.752,
    "s": 67.702,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32015,
    "c": 0.17048,
    "h": 273.1
  },
  "luminance": 0.02779
}

Semantic roles & 50–950 ramp

primary

#1F1A87

secondary

#B5BA42

accent

#EB3DE3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1F1A87

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

Preview Lab → · Contrast checker → · Palette generator →