#1B2887#1B2887

#1B2887 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.0% C 0.157 H 269.3°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#1B2887
RGB	rgb(27, 40, 135)
HSL	hsl(233, 67%, 32%)
HSV	hsv(233, 80%, 53%)
CMYK	cmyk(80%, 70.4%, 0%, 47.1%)
CIE-LAB	lab(21.94, 30.82, -54.21)
CIE-LCH	lch(21.94, 62.35, 299.62°)
OKLab	oklab(33.96% -0.0018 -0.1569)
OKLCH	oklch(33.96% 0.157 269.3)
XYZ	xyz(5.5825, 3.4992, 23.2982)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2887 #877A1B

analogous

#1B5E87 #1B2887 #441B87

triadic

#1B2887 #871B28 #28871B

tetradic

#1B2887 #871B5E #877A1B #1B8744

square

#1B2887 #871B5E #877A1B #1B8744

split-complementary

#1B2887 #87441B #5E871B

monochromatic

#070A21 #111954 #1B2887 #2537BA #4355D9

Accessibility & contrast

On white

12.35

#1B2887 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1B2887 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2887

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2887	#FFFFFF	#000000	##FFFFFF
##1B2887	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A8A

Deuteranopia (green-blind)

#002F85

Tritanopia (blue-blind)

#004254

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2887;
/* rgb */ color: rgb(27, 40, 135);
/* oklch */ color: oklch(34.0% 0.157 269.3);

Tailwind

colors: {
  custom: {
    50: '#6b62ab',
    500: '#1b2887',
    950: '#000000',
  },
}

SCSS

$custom: #1b2887;
$custom-light: #6b62ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2887",
  "rgb": {
    "r": 27,
    "g": 40,
    "b": 135
  },
  "hsl": {
    "h": 232.778,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.33955,
    "c": 0.15696,
    "h": 269.3
  },
  "luminance": 0.035
}

Semantic roles & 50–950 ramp

primary

#1B2887

secondary

#BAAC44

accent

#D53EEA

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1B2887

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

Preview Lab → · Contrast checker → · Palette generator →