#1B2276#1B2276

#1B2276 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.1% C 0.141 H 271.4°. Best body text is #FFFFFF at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B2276
RGB	rgb(27, 34, 118)
HSL	hsl(235, 63%, 28%)
HSV	hsv(235, 77%, 46%)
CMYK	cmyk(77.1%, 71.2%, 0%, 53.7%)
CIE-LAB	lab(18.73, 28.35, -48.70)
CIE-LCH	lch(18.73, 56.35, 300.20°)
OKLab	oklab(31.1% 0.0034 -0.1409)
OKLCH	oklch(31.1% 0.141 271.4)
XYZ	xyz(4.2929, 2.6846, 17.4280)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2276 #766F1B

analogous

#1B4F76 #1B2276 #411B76

triadic

#1B2276 #761B22 #22761B

tetradic

#1B2276 #761B4F #766F1B #1B7641

square

#1B2276 #761B4F #766F1B #1B7641

split-complementary

#1B2276 #76411B #4F761B

monochromatic

#060719 #101444 #1B2276 #2630A8 #3A45D2

Accessibility & contrast

On white

13.66

#1B2276 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1B2276 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2276

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2276	#FFFFFF	#000000	##FFFFFF
##1B2276	1.00	13.66	1.54	13.66
#FFFFFF	13.66	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003279

Deuteranopia (green-blind)

#002974

Tritanopia (blue-blind)

#003949

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1b2276;
/* rgb */ color: rgb(27, 34, 118);
/* oklch */ color: oklch(31.1% 0.141 271.4);

Tailwind

colors: {
  custom: {
    50: '#675d9e',
    500: '#1b2276',
    950: '#000000',
  },
}

SCSS

$custom: #1b2276;
$custom-light: #675d9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2276",
  "rgb": {
    "r": 27,
    "g": 34,
    "b": 118
  },
  "hsl": {
    "h": 235.385,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.31103,
    "c": 0.14094,
    "h": 271.4
  },
  "luminance": 0.02685
}

Semantic roles & 50–950 ramp

primary

#1B2276

secondary

#AAA242

accent

#D942E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1B2276

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

Preview Lab → · Contrast checker → · Palette generator →