#1B3D92#1B3D92

#1B3D92 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.1% C 0.146 H 264.2°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#1B3D92
RGB	rgb(27, 61, 146)
HSL	hsl(223, 69%, 34%)
HSV	hsv(223, 82%, 57%)
CMYK	cmyk(81.5%, 58.2%, 0%, 42.7%)
CIE-LAB	lab(28.50, 20.80, -50.30)
CIE-LCH	lch(28.50, 54.43, 292.47°)
OKLab	oklab(39.12% -0.0148 -0.1453)
OKLCH	oklch(39.12% 0.146 264.2)
XYZ	xyz(7.3072, 5.6450, 27.8930)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3D92 #92701B

analogous

#1B7992 #1B3D92 #351B92

triadic

#1B3D92 #921B3D #3D921B

tetradic

#1B3D92 #921B79 #92701B #1B9235

square

#1B3D92 #921B79 #92701B #1B9235

split-complementary

#1B3D92 #92351B #79921B

monochromatic

#08122B #11275E #1B3D92 #2553C6 #4A74DE

Accessibility & contrast

On white

9.86

#1B3D92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#1B3D92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3D92

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3D92	#FFFFFF	#000000	##FFFFFF
##1B3D92	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004995

Deuteranopia (green-blind)

#003E90

Tritanopia (blue-blind)

#005261

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1b3d92;
/* rgb */ color: rgb(27, 61, 146);
/* oklch */ color: oklch(39.1% 0.146 264.2);

Tailwind

colors: {
  custom: {
    50: '#6c72b3',
    500: '#1b3d92',
    950: '#000000',
  },
}

SCSS

$custom: #1b3d92;
$custom-light: #6c72b3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3d92",
  "rgb": {
    "r": 27,
    "g": 61,
    "b": 146
  },
  "hsl": {
    "h": 222.857,
    "s": 68.786,
    "l": 33.922
  },
  "oklch": {
    "l": 0.39115,
    "c": 0.14602,
    "h": 264.2
  },
  "luminance": 0.05646
}

Semantic roles & 50–950 ramp

primary

#1B3D92

secondary

#BF9E49

accent

#B93CEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1B3D92

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

Preview Lab → · Contrast checker → · Palette generator →