#1B2D89#1B2D89

#1B2D89 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.1% C 0.154 H 268.2°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#1B2D89
RGB	rgb(27, 45, 137)
HSL	hsl(230, 67%, 32%)
HSV	hsv(230, 80%, 54%)
CMYK	cmyk(80.3%, 67.2%, 0%, 46.3%)
CIE-LAB	lab(23.39, 28.24, -53.08)
CIE-LCH	lch(23.39, 60.12, 298.01°)
OKLab	oklab(35.07% -0.0047 -0.1536)
OKLCH	oklch(35.07% 0.154 268.2)
XYZ	xyz(5.9042, 3.9153, 24.1066)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2D89 #89771B

analogous

#1B6489 #1B2D89 #401B89

triadic

#1B2D89 #891B2D #2D891B

tetradic

#1B2D89 #891B64 #89771B #1B8940

square

#1B2D89 #891B64 #89771B #1B8940

split-complementary

#1B2D89 #89401B #64891B

monochromatic

#070B23 #111C56 #1B2D89 #253EBC #445DDA

Accessibility & contrast

On white

11.78

#1B2D89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1B2D89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2D89

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2D89	#FFFFFF	#000000	##FFFFFF
##1B2D89	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8C

Deuteranopia (green-blind)

#003387

Tritanopia (blue-blind)

#004657

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1b2d89;
/* rgb */ color: rgb(27, 45, 137);
/* oklch */ color: oklch(35.1% 0.154 268.2);

Tailwind

colors: {
  custom: {
    50: '#6b66ac',
    500: '#1b2d89',
    950: '#000000',
  },
}

SCSS

$custom: #1b2d89;
$custom-light: #6b66ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2d89",
  "rgb": {
    "r": 27,
    "g": 45,
    "b": 137
  },
  "hsl": {
    "h": 230.182,
    "s": 67.073,
    "l": 32.157
  },
  "oklch": {
    "l": 0.35071,
    "c": 0.1537,
    "h": 268.2
  },
  "luminance": 0.03916
}

Semantic roles & 50–950 ramp

primary

#1B2D89

secondary

#BCA844

accent

#CE3EEA

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1B2D89

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

Preview Lab → · Contrast checker → · Palette generator →