#1F2A69#1F2A69

#1F2A69 is a dark, moderate blue. Relative luminance 0.030; OKLCH L 31.7% C 0.110 H 271.2°. Best body text is #FFFFFF at 13.18:1 contrast (WCAG AA passes).

Color values

HEX	#1F2A69
RGB	rgb(31, 42, 105)
HSL	hsl(231, 54%, 27%)
HSV	hsv(231, 70%, 41%)
CMYK	cmyk(70.5%, 60%, 0%, 58.8%)
CIE-LAB	lab(19.91, 18.29, -38.37)
CIE-LCH	lch(19.91, 42.50, 295.48°)
OKLab	oklab(31.66% 0.0023 -0.1104)
OKLCH	oklch(31.66% 0.11 271.2)
XYZ	xyz(3.9420, 2.9668, 13.7268)
Luminance	0.0297 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2A69 #695E1F

analogous

#1F4F69 #1F2A69 #391F69

triadic

#1F2A69 #691F2A #2A691F

tetradic

#1F2A69 #691F4F #695E1F #1F6939

square

#1F2A69 #691F4F #695E1F #1F6939

split-complementary

#1F2A69 #69391F #4F691F

monochromatic

#070918 #11173A #1F2A69 #2D3D98 #3D51C6

Accessibility & contrast

On white

13.18

#1F2A69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1F2A69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2A69

13.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2A69	#FFFFFF	#000000	##FFFFFF
##1F2A69	1.00	13.18	1.59	13.18
#FFFFFF	13.18	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00346B

Deuteranopia (green-blind)

#002D68

Tritanopia (blue-blind)

#003945

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1f2a69;
/* rgb */ color: rgb(31, 42, 105);
/* oklch */ color: oklch(31.7% 0.110 271.2);

Tailwind

colors: {
  custom: {
    50: '#656394',
    500: '#1f2a69',
    950: '#000000',
  },
}

SCSS

$custom: #1f2a69;
$custom-light: #656394;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2a69",
  "rgb": {
    "r": 31,
    "g": 42,
    "b": 105
  },
  "hsl": {
    "h": 231.081,
    "s": 54.412,
    "l": 26.667
  },
  "oklch": {
    "l": 0.31663,
    "c": 0.11045,
    "h": 271.2
  },
  "luminance": 0.02967
}

Semantic roles & 50–950 ramp

primary

#1F2A69

secondary

#9D9047

accent

#C84ADE

background

#F6F5F9

surface

#EBEAF1

border

#C6C6CB

text

#06050D

muted

#7A797E

Preview Lab

Preview with #1F2A69

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

Preview Lab → · Contrast checker → · Palette generator →