#1F1C98#1F1C98

#1F1C98 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.3% C 0.189 H 271.4°. Best body text is #FFFFFF at 12.52:1 contrast (WCAG AA passes).

Color values

HEX	#1F1C98
RGB	rgb(31, 28, 152)
HSL	hsl(241, 69%, 35%)
HSV	hsv(241, 82%, 60%)
CMYK	cmyk(79.6%, 81.6%, 0%, 40.4%)
CIE-LAB	lab(21.54, 44.20, -65.43)
CIE-LCH	lch(21.54, 78.96, 304.04°)
OKLab	oklab(34.28% 0.0046 -0.1894)
OKLCH	oklch(34.28% 0.189 271.4)
XYZ	xyz(6.6459, 3.3881, 30.0034)
Luminance	0.0339 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1C98 #95981C

analogous

#1C5798 #1F1C98 #5D1C98

triadic

#1F1C98 #981F1C #1C981F

tetradic

#1F1C98 #981C57 #95981C #1C985D

square

#1F1C98 #981C57 #95981C #1C985D

split-complementary

#1F1C98 #985D1C #57981C

monochromatic

#0A0931 #141264 #1F1C98 #2A26CC #5350DF

Accessibility & contrast

On white

12.52

#1F1C98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1F1C98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1C98

12.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1C98	#FFFFFF	#000000	##FFFFFF
##1F1C98	1.00	12.52	1.68	12.52
#FFFFFF	12.52	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A9B

Deuteranopia (green-blind)

#002D96

Tritanopia (blue-blind)

#00435B

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f1c98;
/* rgb */ color: rgb(31, 28, 152);
/* oklch */ color: oklch(34.3% 0.189 271.4);

Tailwind

colors: {
  custom: {
    50: '#725bb8',
    500: '#1f1c98',
    950: '#000000',
  },
}

SCSS

$custom: #1f1c98;
$custom-light: #725bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1c98",
  "rgb": {
    "r": 31,
    "g": 28,
    "b": 152
  },
  "hsl": {
    "h": 241.452,
    "s": 68.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.34283,
    "c": 0.18944,
    "h": 271.4
  },
  "luminance": 0.03389
}

Semantic roles & 50–950 ramp

primary

#1F1C98

secondary

#BFC14E

accent

#EC3CE7

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F1C98

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

Preview Lab → · Contrast checker → · Palette generator →