#1B2E8F#1B2E8F

#1B2E8F is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.9% C 0.161 H 268.0°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E8F
RGB	rgb(27, 46, 143)
HSL	hsl(230, 68%, 33%)
HSV	hsv(230, 81%, 56%)
CMYK	cmyk(81.1%, 67.8%, 0%, 43.9%)
CIE-LAB	lab(24.22, 29.88, -55.44)
CIE-LCH	lch(24.22, 62.98, 298.32°)
OKLab	oklab(35.86% -0.0056 -0.1605)
OKLCH	oklch(35.86% 0.161 268)
XYZ	xyz(6.3852, 4.1694, 26.4495)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E8F #8F7C1B

analogous

#1B688F #1B2E8F #421B8F

triadic

#1B2E8F #8F1B2E #2E8F1B

tetradic

#1B2E8F #8F1B68 #8F7C1B #1B8F42

square

#1B2E8F #8F1B68 #8F7C1B #1B8F42

split-complementary

#1B2E8F #8F421B #688F1B

monochromatic

#080D28 #111D5C #1B2E8F #253FC2 #4860DC

Accessibility & contrast

On white

11.45

#1B2E8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1B2E8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E8F

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E8F	#FFFFFF	#000000	##FFFFFF
##1B2E8F	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F92

Deuteranopia (green-blind)

#00348D

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1b2e8f;
/* rgb */ color: rgb(27, 46, 143);
/* oklch */ color: oklch(35.9% 0.161 268.0);

Tailwind

colors: {
  custom: {
    50: '#6d66b1',
    500: '#1b2e8f',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e8f;
$custom-light: #6d66b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e8f",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 143
  },
  "hsl": {
    "h": 230.172,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.35859,
    "c": 0.16062,
    "h": 268
  },
  "luminance": 0.0417
}

Semantic roles & 50–950 ramp

primary

#1B2E8F

secondary

#BEAB48

accent

#CF3DEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1B2E8F

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

Preview Lab → · Contrast checker → · Palette generator →