#1B225D#1B225D

#1B225D is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.6% C 0.105 H 272.8°. Best body text is #FFFFFF at 14.65:1 contrast (WCAG AA passes).

Color values

HEX	#1B225D
RGB	rgb(27, 34, 93)
HSL	hsl(234, 55%, 24%)
HSV	hsv(234, 71%, 36%)
CMYK	cmyk(71%, 63.4%, 0%, 63.5%)
CIE-LAB	lab(16.34, 18.60, -36.29)
CIE-LCH	lch(16.34, 40.77, 297.14°)
OKLab	oklab(28.61% 0.005 -0.1045)
OKLCH	oklch(28.61% 0.105 272.8)
XYZ	xyz(2.9991, 2.1671, 10.6140)
Luminance	0.0217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B225D #5D561B

analogous

#1B435D #1B225D #351B5D

triadic

#1B225D #5D1B22 #225D1B

tetradic

#1B225D #5D1B43 #5D561B #1B5D35

square

#1B225D #5D1B43 #5D561B #1B5D35

split-complementary

#1B225D #5D351B #435D1B

monochromatic

#070918 #0D112E #1B225D #29338C #3745BC

Accessibility & contrast

On white

14.65

#1B225D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1B225D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B225D

14.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B225D	#FFFFFF	#000000	##FFFFFF
##1B225D	1.00	14.65	1.43	14.65
#FFFFFF	14.65	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C5F

Deuteranopia (green-blind)

#00265C

Tritanopia (blue-blind)

#00313B

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1b225d;
/* rgb */ color: rgb(27, 34, 93);
/* oklch */ color: oklch(28.6% 0.105 272.8);

Tailwind

colors: {
  custom: {
    50: '#615c8b',
    500: '#1b225d',
    950: '#000000',
  },
}

SCSS

$custom: #1b225d;
$custom-light: #615c8b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b225d",
  "rgb": {
    "r": 27,
    "g": 34,
    "b": 93
  },
  "hsl": {
    "h": 233.636,
    "s": 55,
    "l": 23.529
  },
  "oklch": {
    "l": 0.28613,
    "c": 0.10463,
    "h": 272.8
  },
  "luminance": 0.02167
}

Semantic roles & 50–950 ramp

primary

#1B225D

secondary

#938A41

accent

#CF49DE

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05040C

muted

#7A797D

Preview Lab

Preview with #1B225D

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

Preview Lab → · Contrast checker → · Palette generator →