#1B2876#1B2876

#1B2876 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.2% C 0.133 H 269.7°. Best body text is #FFFFFF at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#1B2876
RGB	rgb(27, 40, 118)
HSL	hsl(231, 63%, 28%)
HSV	hsv(231, 77%, 46%)
CMYK	cmyk(77.1%, 66.1%, 0%, 53.7%)
CIE-LAB	lab(20.28, 24.25, -46.18)
CIE-LCH	lch(20.28, 52.16, 297.71°)
OKLab	oklab(32.23% -0.0006 -0.1335)
OKLCH	oklch(32.23% 0.133 269.7)
XYZ	xyz(4.4797, 3.0581, 17.4902)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2876 #76691B

analogous

#1B5576 #1B2876 #3B1B76

triadic

#1B2876 #761B28 #28761B

tetradic

#1B2876 #761B55 #76691B #1B763B

square

#1B2876 #761B55 #76691B #1B763B

split-complementary

#1B2876 #763B1B #55761B

monochromatic

#060819 #101744 #1B2876 #2639A8 #3A4FD2

Accessibility & contrast

On white

13.03

#1B2876 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1B2876 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2876

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2876	#FFFFFF	#000000	##FFFFFF
##1B2876	1.00	13.03	1.61	13.03
#FFFFFF	13.03	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003579

Deuteranopia (green-blind)

#002D75

Tritanopia (blue-blind)

#003C4B

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1b2876;
/* rgb */ color: rgb(27, 40, 118);
/* oklch */ color: oklch(32.2% 0.133 269.7);

Tailwind

colors: {
  custom: {
    50: '#67619e',
    500: '#1b2876',
    950: '#000000',
  },
}

SCSS

$custom: #1b2876;
$custom-light: #67619e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2876",
  "rgb": {
    "r": 27,
    "g": 40,
    "b": 118
  },
  "hsl": {
    "h": 231.429,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.32229,
    "c": 0.13347,
    "h": 269.7
  },
  "luminance": 0.03059
}

Semantic roles & 50–950 ramp

primary

#1B2876

secondary

#AA9C42

accent

#CE42E6

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050E

muted

#7A797E

Preview Lab

Preview with #1B2876

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

Preview Lab → · Contrast checker → · Palette generator →