#1F2C74#1F2C74

#1F2C74 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.1% C 0.124 H 270.3°. Best body text is #FFFFFF at 12.57:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C74
RGB	rgb(31, 44, 116)
HSL	hsl(231, 58%, 29%)
HSV	hsv(231, 73%, 45%)
CMYK	cmyk(73.3%, 62.1%, 0%, 54.5%)
CIE-LAB	lab(21.41, 21.20, -43.04)
CIE-LCH	lch(21.41, 47.98, 296.23°)
OKLab	oklab(33.07% 0.0007 -0.1241)
OKLCH	oklch(33.07% 0.124 270.3)
XYZ	xyz(4.6171, 3.3532, 16.9235)
Luminance	0.0335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C74 #74671F

analogous

#1F5774 #1F2C74 #3D1F74

triadic

#1F2C74 #741F2C #2C741F

tetradic

#1F2C74 #741F57 #74671F #1F743D

square

#1F2C74 #741F57 #74671F #1F743D

split-complementary

#1F2C74 #743D1F #57741F

monochromatic

#060918 #121A44 #1F2C74 #2C3EA4 #4156CC

Accessibility & contrast

On white

12.57

#1F2C74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1F2C74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C74

12.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C74	#FFFFFF	#000000	##FFFFFF
##1F2C74	1.00	12.57	1.67	12.57
#FFFFFF	12.57	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003776

Deuteranopia (green-blind)

#003073

Tritanopia (blue-blind)

#003E4B

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f2c74;
/* rgb */ color: rgb(31, 44, 116);
/* oklch */ color: oklch(33.1% 0.124 270.3);

Tailwind

colors: {
  custom: {
    50: '#67649d',
    500: '#1f2c74',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c74;
$custom-light: #67649d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c74",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 116
  },
  "hsl": {
    "h": 230.824,
    "s": 57.823,
    "l": 28.824
  },
  "oklch": {
    "l": 0.3307,
    "c": 0.12412,
    "h": 270.3
  },
  "luminance": 0.03354
}

Semantic roles & 50–950 ramp

primary

#1F2C74

secondary

#A89947

accent

#C947E1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07050E

muted

#7A7A7E

Preview Lab

Preview with #1F2C74

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

Preview Lab → · Contrast checker → · Palette generator →