#1B225F#1B225F

#1B225F is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.8% C 0.108 H 272.7°. Best body text is #FFFFFF at 14.58:1 contrast (WCAG AA passes).

Color values

HEX	#1B225F
RGB	rgb(27, 34, 95)
HSL	hsl(234, 56%, 24%)
HSV	hsv(234, 72%, 37%)
CMYK	cmyk(71.6%, 64.2%, 0%, 62.7%)
CIE-LAB	lab(16.52, 19.39, -37.33)
CIE-LCH	lch(16.52, 42.06, 297.46°)
OKLab	oklab(28.8% 0.005 -0.1076)
OKLCH	oklch(28.8% 0.108 272.7)
XYZ	xyz(3.0889, 2.2030, 11.0867)
Luminance	0.0220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B225F #5F581B

analogous

#1B445F #1B225F #361B5F

triadic

#1B225F #5F1B22 #225F1B

tetradic

#1B225F #5F1B44 #5F581B #1B5F36

square

#1B225F #5F1B44 #5F581B #1B5F36

split-complementary

#1B225F #5F361B #445F1B

monochromatic

#070918 #0D112F #1B225F #29338F #3644BE

Accessibility & contrast

On white

14.58

#1B225F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1B225F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B225F

14.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B225F	#FFFFFF	#000000	##FFFFFF
##1B225F	1.00	14.58	1.44	14.58
#FFFFFF	14.58	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C61

Deuteranopia (green-blind)

#00265E

Tritanopia (blue-blind)

#00313C

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1b225f;
/* rgb */ color: rgb(27, 34, 95);
/* oklch */ color: oklch(28.8% 0.108 272.7);

Tailwind

colors: {
  custom: {
    50: '#615d8d',
    500: '#1b225f',
    950: '#000000',
  },
}

SCSS

$custom: #1b225f;
$custom-light: #615d8d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b225f",
  "rgb": {
    "r": 27,
    "g": 34,
    "b": 95
  },
  "hsl": {
    "h": 233.824,
    "s": 55.738,
    "l": 23.922
  },
  "oklch": {
    "l": 0.288,
    "c": 0.10768,
    "h": 272.7
  },
  "luminance": 0.02203
}

Semantic roles & 50–950 ramp

primary

#1B225F

secondary

#958C41

accent

#D049DF

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05040C

muted

#7A797D

Preview Lab

Preview with #1B225F

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

Preview Lab → · Contrast checker → · Palette generator →