#1B2985#1B2985

#1B2985 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.9% C 0.153 H 269.2°. Best body text is #FFFFFF at 12.34:1 contrast (WCAG AA passes).

Color values

HEX	#1B2985
RGB	rgb(27, 41, 133)
HSL	hsl(232, 66%, 31%)
HSV	hsv(232, 80%, 52%)
CMYK	cmyk(79.7%, 69.2%, 0%, 47.8%)
CIE-LAB	lab(21.99, 29.39, -52.88)
CIE-LCH	lch(21.99, 60.50, 299.07°)
OKLab	oklab(33.93% -0.0022 -0.1531)
OKLCH	oklch(33.93% 0.153 269.2)
XYZ	xyz(5.4771, 3.5117, 22.5749)
Luminance	0.0351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2985 #85771B

analogous

#1B5E85 #1B2985 #421B85

triadic

#1B2985 #851B29 #29851B

tetradic

#1B2985 #851B5E #85771B #1B8542

square

#1B2985 #851B5E #85771B #1B8542

split-complementary

#1B2985 #85421B #5E851B

monochromatic

#060A1F #111952 #1B2985 #2539B8 #4256D9

Accessibility & contrast

On white

12.34

#1B2985 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1B2985 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2985

12.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2985	#FFFFFF	#000000	##FFFFFF
##1B2985	1.00	12.34	1.70	12.34
#FFFFFF	12.34	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A88

Deuteranopia (green-blind)

#003083

Tritanopia (blue-blind)

#004253

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2985;
/* rgb */ color: rgb(27, 41, 133);
/* oklch */ color: oklch(33.9% 0.153 269.2);

Tailwind

colors: {
  custom: {
    50: '#6b63a9',
    500: '#1b2985',
    950: '#000000',
  },
}

SCSS

$custom: #1b2985;
$custom-light: #6b63a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2985",
  "rgb": {
    "r": 27,
    "g": 41,
    "b": 133
  },
  "hsl": {
    "h": 232.075,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.33926,
    "c": 0.15309,
    "h": 269.2
  },
  "luminance": 0.03512
}

Semantic roles & 50–950 ramp

primary

#1B2985

secondary

#B8A944

accent

#D33FE9

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #1B2985

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

Preview Lab → · Contrast checker → · Palette generator →