#1B245F#1B245F

#1B245F is a dark, moderate blue. Relative luminance 0.023; OKLCH L 29.2% C 0.105 H 271.7°. Best body text is #FFFFFF at 14.34:1 contrast (WCAG AA passes).

Color values

HEX	#1B245F
RGB	rgb(27, 36, 95)
HSL	hsl(232, 56%, 24%)
HSV	hsv(232, 72%, 37%)
CMYK	cmyk(71.6%, 62.1%, 0%, 62.7%)
CIE-LAB	lab(17.09, 17.95, -36.40)
CIE-LCH	lch(17.09, 40.58, 296.25°)
OKLab	oklab(29.22% 0.0031 -0.1048)
OKLCH	oklch(29.22% 0.105 271.7)
XYZ	xyz(3.1477, 2.3207, 11.1063)
Luminance	0.0232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B245F #5F561B

analogous

#1B465F #1B245F #341B5F

triadic

#1B245F #5F1B24 #245F1B

tetradic

#1B245F #5F1B46 #5F561B #1B5F34

square

#1B245F #5F1B46 #5F561B #1B5F34

split-complementary

#1B245F #5F341B #465F1B

monochromatic

#070918 #0D122F #1B245F #29368F #3648BE

Accessibility & contrast

On white

14.34

#1B245F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1B245F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B245F

14.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B245F	#FFFFFF	#000000	##FFFFFF
##1B245F	1.00	14.34	1.46	14.34
#FFFFFF	14.34	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D61

Deuteranopia (green-blind)

#00275E

Tritanopia (blue-blind)

#00323D

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1b245f;
/* rgb */ color: rgb(27, 36, 95);
/* oklch */ color: oklch(29.2% 0.105 271.7);

Tailwind

colors: {
  custom: {
    50: '#615e8d',
    500: '#1b245f',
    950: '#000000',
  },
}

SCSS

$custom: #1b245f;
$custom-light: #615e8d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b245f",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 95
  },
  "hsl": {
    "h": 232.059,
    "s": 55.738,
    "l": 23.922
  },
  "oklch": {
    "l": 0.29223,
    "c": 0.10487,
    "h": 271.7
  },
  "luminance": 0.02321
}

Semantic roles & 50–950 ramp

primary

#1B245F

secondary

#958A41

accent

#CB49DF

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05040C

muted

#7A797D

Preview Lab

Preview with #1B245F

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

Preview Lab → · Contrast checker → · Palette generator →