#1B2385#1B2385

#1B2385 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.9% C 0.160 H 270.3°. Best body text is #FFFFFF at 12.92:1 contrast (WCAG AA passes).

Color values

HEX	#1B2385
RGB	rgb(27, 35, 133)
HSL	hsl(235, 66%, 31%)
HSV	hsv(235, 80%, 52%)
CMYK	cmyk(79.7%, 73.7%, 0%, 47.8%)
CIE-LAB	lab(20.55, 33.30, -55.25)
CIE-LCH	lch(20.55, 64.51, 301.08°)
OKLab	oklab(32.89% 0.0009 -0.16)
OKLCH	oklch(32.89% 0.16 270.3)
XYZ	xyz(5.2852, 3.1279, 22.5110)
Luminance	0.0313 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2385 #857D1B

analogous

#1B5885 #1B2385 #481B85

triadic

#1B2385 #851B23 #23851B

tetradic

#1B2385 #851B58 #857D1B #1B8548

square

#1B2385 #851B58 #857D1B #1B8548

split-complementary

#1B2385 #85481B #58851B

monochromatic

#06081F #111652 #1B2385 #2530B8 #424DD9

Accessibility & contrast

On white

12.92

#1B2385 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#1B2385 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2385

12.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2385	#FFFFFF	#000000	##FFFFFF
##1B2385	1.00	12.92	1.63	12.92
#FFFFFF	12.92	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003788

Deuteranopia (green-blind)

#002C83

Tritanopia (blue-blind)

#003F51

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1b2385;
/* rgb */ color: rgb(27, 35, 133);
/* oklch */ color: oklch(32.9% 0.160 270.3);

Tailwind

colors: {
  custom: {
    50: '#6b5eaa',
    500: '#1b2385',
    950: '#000000',
  },
}

SCSS

$custom: #1b2385;
$custom-light: #6b5eaa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2385",
  "rgb": {
    "r": 27,
    "g": 35,
    "b": 133
  },
  "hsl": {
    "h": 235.472,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32887,
    "c": 0.15997,
    "h": 270.3
  },
  "luminance": 0.03129
}

Semantic roles & 50–950 ramp

primary

#1B2385

secondary

#B8AF44

accent

#DC3FE9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1B2385

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

Preview Lab → · Contrast checker → · Palette generator →