#1B246C#1B246C

#1B246C is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.5% C 0.124 H 271.3°. Best body text is #FFFFFF at 13.86:1 contrast (WCAG AA passes).

Color values

HEX	#1B246C
RGB	rgb(27, 36, 108)
HSL	hsl(233, 60%, 26%)
HSV	hsv(233, 75%, 42%)
CMYK	cmyk(75%, 66.7%, 0%, 57.6%)
CIE-LAB	lab(18.26, 23.11, -43.02)
CIE-LCH	lch(18.26, 48.83, 298.25°)
OKLab	oklab(30.46% 0.0028 -0.1242)
OKLCH	oklch(30.46% 0.124 271.3)
XYZ	xyz(3.7887, 2.5771, 14.4822)
Luminance	0.0258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B246C #6C631B

analogous

#1B4D6C #1B246C #3B1B6C

triadic

#1B246C #6C1B24 #246C1B

tetradic

#1B246C #6C1B4D #6C631B #1B6C3B

square

#1B246C #6C1B4D #6C631B #1B6C3B

split-complementary

#1B246C #6C3B1B #4D6C1B

monochromatic

#060818 #0F143B #1B246C #27349D #3546CC

Accessibility & contrast

On white

13.86

#1B246C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1B246C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B246C

13.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B246C	#FFFFFF	#000000	##FFFFFF
##1B246C	1.00	13.86	1.52	13.86
#FFFFFF	13.86	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00306E

Deuteranopia (green-blind)

#00296B

Tritanopia (blue-blind)

#003744

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1b246c;
/* rgb */ color: rgb(27, 36, 108);
/* oklch */ color: oklch(30.5% 0.124 271.3);

Tailwind

colors: {
  custom: {
    50: '#645e97',
    500: '#1b246c',
    950: '#000000',
  },
}

SCSS

$custom: #1b246c;
$custom-light: #645e97;
$custom-dark: #000000;

JSON

{
  "hex": "#1b246c",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 108
  },
  "hsl": {
    "h": 233.333,
    "s": 60,
    "l": 26.471
  },
  "oklch": {
    "l": 0.30459,
    "c": 0.12427,
    "h": 271.3
  },
  "luminance": 0.02577
}

Semantic roles & 50–950 ramp

primary

#1B246C

secondary

#A19642

accent

#D245E3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #1B246C

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

Preview Lab → · Contrast checker → · Palette generator →