#1B2F8D#1B2F8D

#1B2F8D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.8% C 0.157 H 267.8°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#1B2F8D
RGB	rgb(27, 47, 141)
HSL	hsl(229, 68%, 33%)
HSV	hsv(229, 81%, 55%)
CMYK	cmyk(80.9%, 66.7%, 0%, 44.7%)
CIE-LAB	lab(24.28, 28.44, -54.10)
CIE-LCH	lch(24.28, 61.12, 297.73°)
OKLab	oklab(35.85% -0.006 -0.1566)
OKLCH	oklch(35.85% 0.157 267.8)
XYZ	xyz(6.2746, 4.1884, 25.6719)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2F8D #8D791B

analogous

#1B688D #1B2F8D #401B8D

triadic

#1B2F8D #8D1B2F #2F8D1B

tetradic

#1B2F8D #8D1B68 #8D791B #1B8D40

square

#1B2F8D #8D1B68 #8D791B #1B8D40

split-complementary

#1B2F8D #8D401B #688D1B

monochromatic

#070D26 #111E5A #1B2F8D #2540C0 #4761DC

Accessibility & contrast

On white

11.43

#1B2F8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1B2F8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2F8D

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2F8D	#FFFFFF	#000000	##FFFFFF
##1B2F8D	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F90

Deuteranopia (green-blind)

#00348B

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1b2f8d;
/* rgb */ color: rgb(27, 47, 141);
/* oklch */ color: oklch(35.8% 0.157 267.8);

Tailwind

colors: {
  custom: {
    50: '#6c67af',
    500: '#1b2f8d',
    950: '#000000',
  },
}

SCSS

$custom: #1b2f8d;
$custom-light: #6c67af;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2f8d",
  "rgb": {
    "r": 27,
    "g": 47,
    "b": 141
  },
  "hsl": {
    "h": 229.474,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.35845,
    "c": 0.15672,
    "h": 267.8
  },
  "luminance": 0.04189
}

Semantic roles & 50–950 ramp

primary

#1B2F8D

secondary

#BDA846

accent

#CC3DEB

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1B2F8D

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

Preview Lab → · Contrast checker → · Palette generator →