#1F145F#1F145F

#1F145F is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.6% C 0.125 H 280.4°. Best body text is #FFFFFF at 15.87:1 contrast (WCAG AA passes).

Color values

HEX	#1F145F
RGB	rgb(31, 20, 95)
HSL	hsl(249, 65%, 23%)
HSV	hsv(249, 79%, 37%)
CMYK	cmyk(67.4%, 78.9%, 0%, 62.7%)
CIE-LAB	lab(13.34, 29.43, -42.52)
CIE-LCH	lch(13.34, 51.71, 304.69°)
OKLab	oklab(26.58% 0.0224 -0.1227)
OKLCH	oklch(26.58% 0.125 280.4)
XYZ	xyz(2.8801, 1.6176, 10.9847)
Luminance	0.0162 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F145F #545F14

analogous

#142F5F #1F145F #44145F

triadic

#1F145F #5F1F14 #145F1F

tetradic

#1F145F #5F142F #545F14 #145F44

square

#1F145F #5F142F #545F14 #145F44

split-complementary

#1F145F #5F4414 #2F5F14

monochromatic

#080519 #0F092C #1F145F #2F1F92 #4029C4

Accessibility & contrast

On white

15.87

#1F145F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#1F145F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F145F

15.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F145F	#FFFFFF	#000000	##FFFFFF
##1F145F	1.00	15.87	1.32	15.87
#FFFFFF	15.87	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002561

Deuteranopia (green-blind)

#001F5E

Tritanopia (blue-blind)

#002938

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1f145f;
/* rgb */ color: rgb(31, 20, 95);
/* oklch */ color: oklch(26.6% 0.125 280.4);

Tailwind

colors: {
  custom: {
    50: '#64538d',
    500: '#1f145f',
    950: '#000000',
  },
}

SCSS

$custom: #1f145f;
$custom-light: #64538d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f145f",
  "rgb": {
    "r": 31,
    "g": 20,
    "b": 95
  },
  "hsl": {
    "h": 248.8,
    "s": 65.217,
    "l": 22.549
  },
  "oklch": {
    "l": 0.26577,
    "c": 0.12473,
    "h": 280.4
  },
  "luminance": 0.01618
}

Semantic roles & 50–950 ramp

primary

#1F145F

secondary

#899738

accent

#E840CF

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1F145F

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

Preview Lab → · Contrast checker → · Palette generator →