#1F43AE#1F43AE

#1F43AE is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.0% C 0.176 H 265.2°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#1F43AE
RGB	rgb(31, 67, 174)
HSL	hsl(225, 70%, 40%)
HSV	hsv(225, 82%, 68%)
CMYK	cmyk(82.2%, 61.5%, 0%, 31.8%)
CIE-LAB	lab(32.61, 28.14, -60.51)
CIE-LCH	lch(32.61, 66.73, 294.94°)
OKLab	oklab(42.96% -0.0147 -0.1751)
OKLCH	oklch(42.96% 0.176 265.2)
XYZ	xyz(10.2095, 7.3604, 40.9188)
Luminance	0.0736 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F43AE #AE8A1F

analogous

#1F8AAE #1F43AE #421FAE

triadic

#1F43AE #AE1F43 #43AE1F

tetradic

#1F43AE #AE1F8A #AE8A1F #1FAE42

square

#1F43AE #AE1F8A #AE8A1F #1FAE42

split-complementary

#1F43AE #AE421F #8AAE1F

monochromatic

#0C1B46 #162F7A #1F43AE #305BDA #6484E3

Accessibility & contrast

On white

8.49

#1F43AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1F43AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F43AE

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F43AE	#FFFFFF	#000000	##FFFFFF
##1F43AE	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B2

Deuteranopia (green-blind)

#0046AC

Tritanopia (blue-blind)

#005F72

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f43ae;
/* rgb */ color: rgb(31, 67, 174);
/* oklch */ color: oklch(43.0% 0.176 265.2);

Tailwind

colors: {
  custom: {
    50: '#7476c7',
    500: '#1f43ae',
    950: '#000000',
  },
}

SCSS

$custom: #1f43ae;
$custom-light: #7476c7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f43ae",
  "rgb": {
    "r": 31,
    "g": 67,
    "b": 174
  },
  "hsl": {
    "h": 224.895,
    "s": 69.756,
    "l": 40.196
  },
  "oklch": {
    "l": 0.42964,
    "c": 0.17569,
    "h": 265.2
  },
  "luminance": 0.07362
}

Semantic roles & 50–950 ramp

primary

#1F43AE

secondary

#C8AE60

accent

#C03BED

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #1F43AE

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

Preview Lab → · Contrast checker → · Palette generator →