#1B246E#1B246E

#1B246E is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.7% C 0.127 H 271.2°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#1B246E
RGB	rgb(27, 36, 110)
HSL	hsl(233, 61%, 27%)
HSV	hsv(233, 75%, 43%)
CMYK	cmyk(75.5%, 67.3%, 0%, 56.9%)
CIE-LAB	lab(18.45, 23.90, -44.00)
CIE-LCH	lch(18.45, 50.07, 298.50°)
OKLab	oklab(30.66% 0.0027 -0.1271)
OKLCH	oklch(30.66% 0.127 271.2)
XYZ	xyz(3.8964, 2.6202, 15.0492)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B246E #6E651B

analogous

#1B4E6E #1B246E #3C1B6E

triadic

#1B246E #6E1B24 #246E1B

tetradic

#1B246E #6E1B4E #6E651B #1B6E3C

square

#1B246E #6E1B4E #6E651B #1B6E3C

split-complementary

#1B246E #6E3C1B #4E6E1B

monochromatic

#060819 #0F143D #1B246E #27349F #3646CE

Accessibility & contrast

On white

13.78

#1B246E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1B246E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B246E

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B246E	#FFFFFF	#000000	##FFFFFF
##1B246E	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003170

Deuteranopia (green-blind)

#00296D

Tritanopia (blue-blind)

#003745

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1b246e;
/* rgb */ color: rgb(27, 36, 110);
/* oklch */ color: oklch(30.7% 0.127 271.2);

Tailwind

colors: {
  custom: {
    50: '#655e98',
    500: '#1b246e',
    950: '#000000',
  },
}

SCSS

$custom: #1b246e;
$custom-light: #655e98;
$custom-dark: #000000;

JSON

{
  "hex": "#1b246e",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 110
  },
  "hsl": {
    "h": 233.494,
    "s": 60.584,
    "l": 26.863
  },
  "oklch": {
    "l": 0.30657,
    "c": 0.12717,
    "h": 271.2
  },
  "luminance": 0.02621
}

Semantic roles & 50–950 ramp

primary

#1B246E

secondary

#A39842

accent

#D244E4

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #1B246E

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

Preview Lab → · Contrast checker → · Palette generator →