#1F42AE#1F42AE

#1F42AE is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.8% C 0.177 H 265.4°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#1F42AE
RGB	rgb(31, 66, 174)
HSL	hsl(225, 70%, 40%)
HSV	hsv(225, 82%, 68%)
CMYK	cmyk(82.2%, 62.1%, 0%, 31.8%)
CIE-LAB	lab(32.35, 28.80, -60.94)
CIE-LCH	lch(32.35, 67.40, 295.30°)
OKLab	oklab(42.77% -0.0141 -0.1763)
OKLCH	oklch(42.77% 0.177 265.4)
XYZ	xyz(10.1506, 7.2425, 40.8992)
Luminance	0.0724 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F42AE #AE8B1F

analogous

#1F89AE #1F42AE #441FAE

triadic

#1F42AE #AE1F42 #42AE1F

tetradic

#1F42AE #AE1F89 #AE8B1F #1FAE44

square

#1F42AE #AE1F89 #AE8B1F #1FAE44

split-complementary

#1F42AE #AE441F #89AE1F

monochromatic

#0C1B46 #162E7A #1F42AE #305ADA #6483E3

Accessibility & contrast

On white

8.58

#1F42AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1F42AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F42AE

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F42AE	#FFFFFF	#000000	##FFFFFF
##1F42AE	1.00	8.58	2.45	8.58
#FFFFFF	8.58	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B2

Deuteranopia (green-blind)

#0046AC

Tritanopia (blue-blind)

#005E71

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1f42ae;
/* rgb */ color: rgb(31, 66, 174);
/* oklch */ color: oklch(42.8% 0.177 265.4);

Tailwind

colors: {
  custom: {
    50: '#7476c7',
    500: '#1f42ae',
    950: '#000000',
  },
}

SCSS

$custom: #1f42ae;
$custom-light: #7476c7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f42ae",
  "rgb": {
    "r": 31,
    "g": 66,
    "b": 174
  },
  "hsl": {
    "h": 225.315,
    "s": 69.756,
    "l": 40.196
  },
  "oklch": {
    "l": 0.4277,
    "c": 0.17691,
    "h": 265.4
  },
  "luminance": 0.07244
}

Semantic roles & 50–950 ramp

primary

#1F42AE

secondary

#C8AF60

accent

#C13BED

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #1F42AE

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

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