#1F225F#1F225F

#1F225F is a dark, moderate blue. Relative luminance 0.023; OKLCH L 29.1% C 0.107 H 275.4°. Best body text is #FFFFFF at 14.46:1 contrast (WCAG AA passes).

Color values

HEX	#1F225F
RGB	rgb(31, 34, 95)
HSL	hsl(237, 51%, 25%)
HSV	hsv(237, 67%, 37%)
CMYK	cmyk(67.4%, 64.2%, 0%, 62.7%)
CIE-LAB	lab(16.80, 20.09, -36.85)
CIE-LCH	lch(16.80, 41.97, 298.60°)
OKLab	oklab(29.09% 0.0101 -0.106)
OKLCH	oklch(29.09% 0.107 275.4)
XYZ	xyz(3.2020, 2.2613, 11.0920)
Luminance	0.0226 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F225F #5F5C1F

analogous

#1F425F #1F225F #3C1F5F

triadic

#1F225F #5F1F22 #225F1F

tetradic

#1F225F #5F1F42 #5F5C1F #1F5F3C

square

#1F225F #5F1F42 #5F5C1F #1F5F3C

split-complementary

#1F225F #5F3C1F #425F1F

monochromatic

#080817 #101131 #1F225F #2E338D #3D43BB

Accessibility & contrast

On white

14.46

#1F225F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1F225F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F225F

14.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F225F	#FFFFFF	#000000	##FFFFFF
##1F225F	1.00	14.46	1.45	14.46
#FFFFFF	14.46	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C61

Deuteranopia (green-blind)

#00275E

Tritanopia (blue-blind)

#00313C

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f225f;
/* rgb */ color: rgb(31, 34, 95);
/* oklch */ color: oklch(29.1% 0.107 275.4);

Tailwind

colors: {
  custom: {
    50: '#635d8d',
    500: '#1f225f',
    950: '#000000',
  },
}

SCSS

$custom: #1f225f;
$custom-light: #635d8d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f225f",
  "rgb": {
    "r": 31,
    "g": 34,
    "b": 95
  },
  "hsl": {
    "h": 237.188,
    "s": 50.794,
    "l": 24.706
  },
  "oklch": {
    "l": 0.29085,
    "c": 0.10653,
    "h": 275.4
  },
  "luminance": 0.02262
}

Semantic roles & 50–950 ramp

primary

#1F225F

secondary

#949046

accent

#D44EDA

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06040C

muted

#7A797D

Preview Lab

Preview with #1F225F

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

Preview Lab → · Contrast checker → · Palette generator →