#1B2987#1B2987

#1B2987 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.1% C 0.156 H 269.1°. Best body text is #FFFFFF at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#1B2987
RGB	rgb(27, 41, 135)
HSL	hsl(232, 67%, 32%)
HSV	hsv(232, 80%, 53%)
CMYK	cmyk(80%, 69.6%, 0%, 47.1%)
CIE-LAB	lab(22.19, 30.15, -53.80)
CIE-LCH	lch(22.19, 61.68, 299.27°)
OKLab	oklab(34.13% -0.0023 -0.1558)
OKLCH	oklch(34.13% 0.156 269.1)
XYZ	xyz(5.6166, 3.5675, 23.3096)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2987 #87791B

analogous

#1B5F87 #1B2987 #431B87

triadic

#1B2987 #871B29 #29871B

tetradic

#1B2987 #871B5F #87791B #1B8743

square

#1B2987 #871B5F #87791B #1B8743

split-complementary

#1B2987 #87431B #5F871B

monochromatic

#070A21 #111A54 #1B2987 #2538BA #4356D9

Accessibility & contrast

On white

12.25

#1B2987 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1B2987 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2987

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2987	#FFFFFF	#000000	##FFFFFF
##1B2987	1.00	12.25	1.71	12.25
#FFFFFF	12.25	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A8A

Deuteranopia (green-blind)

#003085

Tritanopia (blue-blind)

#004354

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2987;
/* rgb */ color: rgb(27, 41, 135);
/* oklch */ color: oklch(34.1% 0.156 269.1);

Tailwind

colors: {
  custom: {
    50: '#6b63ab',
    500: '#1b2987',
    950: '#000000',
  },
}

SCSS

$custom: #1b2987;
$custom-light: #6b63ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2987",
  "rgb": {
    "r": 27,
    "g": 41,
    "b": 135
  },
  "hsl": {
    "h": 232.222,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.34133,
    "c": 0.15579,
    "h": 269.1
  },
  "luminance": 0.03568
}

Semantic roles & 50–950 ramp

primary

#1B2987

secondary

#BAAB44

accent

#D33EEA

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1B2987

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

Preview Lab → · Contrast checker → · Palette generator →