#1B2885#1B2885

#1B2885 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.7% C 0.154 H 269.4°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#1B2885
RGB	rgb(27, 40, 133)
HSL	hsl(233, 66%, 31%)
HSV	hsv(233, 80%, 52%)
CMYK	cmyk(79.7%, 69.9%, 0%, 47.8%)
CIE-LAB	lab(21.74, 30.06, -53.29)
CIE-LCH	lch(21.74, 61.18, 299.43°)
OKLab	oklab(33.75% -0.0016 -0.1543)
OKLCH	oklch(33.75% 0.154 269.4)
XYZ	xyz(5.4430, 3.4434, 22.5635)
Luminance	0.0344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2885 #85781B

analogous

#1B5D85 #1B2885 #431B85

triadic

#1B2885 #851B28 #28851B

tetradic

#1B2885 #851B5D #85781B #1B8543

square

#1B2885 #851B5D #85781B #1B8543

split-complementary

#1B2885 #85431B #5D851B

monochromatic

#06091F #111952 #1B2885 #2537B8 #4254D9

Accessibility & contrast

On white

12.43

#1B2885 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1B2885 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2885

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2885	#FFFFFF	#000000	##FFFFFF
##1B2885	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003988

Deuteranopia (green-blind)

#002F83

Tritanopia (blue-blind)

#004153

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b2885;
/* rgb */ color: rgb(27, 40, 133);
/* oklch */ color: oklch(33.7% 0.154 269.4);

Tailwind

colors: {
  custom: {
    50: '#6b62a9',
    500: '#1b2885',
    950: '#000000',
  },
}

SCSS

$custom: #1b2885;
$custom-light: #6b62a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2885",
  "rgb": {
    "r": 27,
    "g": 40,
    "b": 133
  },
  "hsl": {
    "h": 232.642,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.33746,
    "c": 0.15427,
    "h": 269.4
  },
  "luminance": 0.03444
}

Semantic roles & 50–950 ramp

primary

#1B2885

secondary

#B8AA44

accent

#D43FE9

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #1B2885

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

Preview Lab → · Contrast checker → · Palette generator →