#1F2A74#1F2A74

#1F2A74 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.7% C 0.127 H 271.0°. Best body text is #FFFFFF at 12.79:1 contrast (WCAG AA passes).

Color values

HEX	#1F2A74
RGB	rgb(31, 42, 116)
HSL	hsl(232, 58%, 29%)
HSV	hsv(232, 73%, 45%)
CMYK	cmyk(73.3%, 63.8%, 0%, 54.5%)
CIE-LAB	lab(20.86, 22.61, -43.93)
CIE-LCH	lch(20.86, 49.41, 297.23°)
OKLab	oklab(32.66% 0.0023 -0.1268)
OKLCH	oklch(32.66% 0.127 271)
XYZ	xyz(4.5444, 3.2077, 16.8993)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2A74 #74691F

analogous

#1F5574 #1F2A74 #3F1F74

triadic

#1F2A74 #741F2A #2A741F

tetradic

#1F2A74 #741F55 #74691F #1F743F

square

#1F2A74 #741F55 #74691F #1F743F

split-complementary

#1F2A74 #743F1F #55741F

monochromatic

#060918 #121944 #1F2A74 #2C3BA4 #4153CC

Accessibility & contrast

On white

12.79

#1F2A74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1F2A74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2A74

12.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2A74	#FFFFFF	#000000	##FFFFFF
##1F2A74	1.00	12.79	1.64	12.79
#FFFFFF	12.79	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003676

Deuteranopia (green-blind)

#002E73

Tritanopia (blue-blind)

#003D4A

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1f2a74;
/* rgb */ color: rgb(31, 42, 116);
/* oklch */ color: oklch(32.7% 0.127 271.0);

Tailwind

colors: {
  custom: {
    50: '#67639d',
    500: '#1f2a74',
    950: '#000000',
  },
}

SCSS

$custom: #1f2a74;
$custom-light: #67639d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2a74",
  "rgb": {
    "r": 31,
    "g": 42,
    "b": 116
  },
  "hsl": {
    "h": 232.235,
    "s": 57.823,
    "l": 28.824
  },
  "oklch": {
    "l": 0.32663,
    "c": 0.12679,
    "h": 271
  },
  "luminance": 0.03208
}

Semantic roles & 50–950 ramp

primary

#1F2A74

secondary

#A89B47

accent

#CD47E1

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050E

muted

#7A797E

Preview Lab

Preview with #1F2A74

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

Preview Lab → · Contrast checker → · Palette generator →