#1F157C#1F157C

#1F157C is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.1% C 0.161 H 275.0°. Best body text is #FFFFFF at 14.42:1 contrast (WCAG AA passes).

Color values

HEX	#1F157C
RGB	rgb(31, 21, 124)
HSL	hsl(246, 71%, 28%)
HSV	hsv(246, 83%, 49%)
CMYK	cmyk(75%, 83.1%, 0%, 51.4%)
CIE-LAB	lab(16.90, 38.65, -55.56)
CIE-LCH	lch(16.90, 67.68, 304.83°)
OKLab	oklab(30.07% 0.014 -0.1606)
OKLCH	oklch(30.07% 0.161 275)
XYZ	xyz(4.4701, 2.2824, 19.2698)
Luminance	0.0228 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F157C #727C15

analogous

#153E7C #1F157C #52157C

triadic

#1F157C #7C1F15 #157C1F

tetradic

#1F157C #7C153E #727C15 #157C52

square

#1F157C #7C153E #727C15 #157C52

split-complementary

#1F157C #7C5215 #3E7C15

monochromatic

#07041A #120C48 #1F157C #2C1EB0 #4030DC

Accessibility & contrast

On white

14.42

#1F157C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1F157C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F157C

14.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F157C	#FFFFFF	#000000	##FFFFFF
##1F157C	1.00	14.42	1.46	14.42
#FFFFFF	14.42	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7F

Deuteranopia (green-blind)

#00257A

Tritanopia (blue-blind)

#003549

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1f157c;
/* rgb */ color: rgb(31, 21, 124);
/* oklch */ color: oklch(30.1% 0.161 275.0);

Tailwind

colors: {
  custom: {
    50: '#6c56a3',
    500: '#1f157c',
    950: '#000000',
  },
}

SCSS

$custom: #1f157c;
$custom-light: #6c56a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f157c",
  "rgb": {
    "r": 31,
    "g": 21,
    "b": 124
  },
  "hsl": {
    "h": 245.825,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30074,
    "c": 0.16126,
    "h": 275
  },
  "luminance": 0.02283
}

Semantic roles & 50–950 ramp

primary

#1F157C

secondary

#A6B13C

accent

#EE3ADC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1F157C

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

Preview Lab → · Contrast checker → · Palette generator →