#1F145C#1F145C

#1F145C is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.2% C 0.121 H 281.1°. Best body text is #FFFFFF at 16.00:1 contrast (WCAG AA passes).

Color values

HEX	#1F145C
RGB	rgb(31, 20, 92)
HSL	hsl(249, 64%, 22%)
HSV	hsv(249, 78%, 36%)
CMYK	cmyk(66.3%, 78.3%, 0%, 63.9%)
CIE-LAB	lab(13.01, 28.39, -41.05)
CIE-LCH	lch(13.01, 49.91, 304.66°)
OKLab	oklab(26.25% 0.0232 -0.1184)
OKLCH	oklch(26.25% 0.121 281.1)
XYZ	xyz(2.7464, 1.5641, 10.2803)
Luminance	0.0156 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F145C #515C14

analogous

#142D5C #1F145C #43145C

triadic

#1F145C #5C1F14 #145C1F

tetradic

#1F145C #5C142D #515C14 #145C43

square

#1F145C #5C142D #515C14 #145C43

split-complementary

#1F145C #5C4314 #2D5C14

monochromatic

#080519 #0E092A #1F145C #301F8E #412AC1

Accessibility & contrast

On white

16.00

#1F145C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#1F145C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F145C

16.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F145C	#FFFFFF	#000000	##FFFFFF
##1F145C	1.00	16.00	1.31	16.00
#FFFFFF	16.00	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245E

Deuteranopia (green-blind)

#001F5B

Tritanopia (blue-blind)

#002836

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1f145c;
/* rgb */ color: rgb(31, 20, 92);
/* oklch */ color: oklch(26.2% 0.121 281.1);

Tailwind

colors: {
  custom: {
    50: '#64538b',
    500: '#1f145c',
    950: '#000000',
  },
}

SCSS

$custom: #1f145c;
$custom-light: #64538b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f145c",
  "rgb": {
    "r": 31,
    "g": 20,
    "b": 92
  },
  "hsl": {
    "h": 249.167,
    "s": 64.286,
    "l": 21.961
  },
  "oklch": {
    "l": 0.26247,
    "c": 0.12065,
    "h": 281.1
  },
  "luminance": 0.01564
}

Semantic roles & 50–950 ramp

primary

#1F145C

secondary

#869438

accent

#E741CE

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1F145C

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

Preview Lab → · Contrast checker → · Palette generator →