#1F2D7E#1F2D7E

#1F2D7E is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.2% C 0.137 H 269.9°. Best body text is #FFFFFF at 12.11:1 contrast (WCAG AA passes).

Color values

HEX	#1F2D7E
RGB	rgb(31, 45, 126)
HSL	hsl(231, 61%, 31%)
HSV	hsv(231, 75%, 49%)
CMYK	cmyk(75.4%, 64.3%, 0%, 50.6%)
CIE-LAB	lab(22.56, 24.42, -47.52)
CIE-LCH	lch(22.56, 53.42, 297.20°)
OKLab	oklab(34.2% -0.0003 -0.1372)
OKLCH	oklch(34.2% 0.137 269.9)
XYZ	xyz(5.2681, 3.6739, 20.1661)
Luminance	0.0367 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2D7E #7E701F

analogous

#1F5C7E #1F2D7E #401F7E

triadic

#1F2D7E #7E1F2D #2D7E1F

tetradic

#1F2D7E #7E1F5C #7E701F #1F7E40

square

#1F2D7E #7E1F5C #7E701F #1F7E40

split-complementary

#1F2D7E #7E401F #5C7E1F

monochromatic

#070A1C #131B4D #1F2D7E #2B3FAF #465AD1

Accessibility & contrast

On white

12.11

#1F2D7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1F2D7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2D7E

12.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2D7E	#FFFFFF	#000000	##FFFFFF
##1F2D7E	1.00	12.11	1.73	12.11
#FFFFFF	12.11	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A81

Deuteranopia (green-blind)

#00327C

Tritanopia (blue-blind)

#004251

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2d7e;
/* rgb */ color: rgb(31, 45, 126);
/* oklch */ color: oklch(34.2% 0.137 269.9);

Tailwind

colors: {
  custom: {
    50: '#6a65a4',
    500: '#1f2d7e',
    950: '#000000',
  },
}

SCSS

$custom: #1f2d7e;
$custom-light: #6a65a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2d7e",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 126
  },
  "hsl": {
    "h": 231.158,
    "s": 60.51,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34202,
    "c": 0.13725,
    "h": 269.9
  },
  "luminance": 0.03674
}

Semantic roles & 50–950 ramp

primary

#1F2D7E

secondary

#B1A248

accent

#CC44E4

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1F2D7E

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

Preview Lab → · Contrast checker → · Palette generator →