#1B2E8E#1B2E8E

#1B2E8E is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.8% C 0.159 H 268.0°. Best body text is #FFFFFF at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E8E
RGB	rgb(27, 46, 142)
HSL	hsl(230, 68%, 33%)
HSV	hsv(230, 81%, 56%)
CMYK	cmyk(81%, 67.6%, 0%, 44.3%)
CIE-LAB	lab(24.13, 29.50, -54.98)
CIE-LCH	lch(24.13, 62.39, 298.21°)
OKLab	oklab(35.76% -0.0055 -0.1592)
OKLCH	oklch(35.76% 0.159 268)
XYZ	xyz(6.3098, 4.1393, 26.0523)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E8E #8E7B1B

analogous

#1B678E #1B2E8E #411B8E

triadic

#1B2E8E #8E1B2E #2E8E1B

tetradic

#1B2E8E #8E1B67 #8E7B1B #1B8E41

square

#1B2E8E #8E1B67 #8E7B1B #1B8E41

split-complementary

#1B2E8E #8E411B #678E1B

monochromatic

#070D27 #111D5B #1B2E8E #253FC1 #4760DC

Accessibility & contrast

On white

11.49

#1B2E8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1B2E8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E8E

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E8E	#FFFFFF	#000000	##FFFFFF
##1B2E8E	1.00	11.49	1.83	11.49
#FFFFFF	11.49	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F91

Deuteranopia (green-blind)

#00348C

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1b2e8e;
/* rgb */ color: rgb(27, 46, 142);
/* oklch */ color: oklch(35.8% 0.159 268.0);

Tailwind

colors: {
  custom: {
    50: '#6d66b0',
    500: '#1b2e8e',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e8e;
$custom-light: #6d66b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e8e",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 142
  },
  "hsl": {
    "h": 230.087,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.35758,
    "c": 0.15928,
    "h": 268
  },
  "luminance": 0.0414
}

Semantic roles & 50–950 ramp

primary

#1B2E8E

secondary

#BEAA47

accent

#CE3DEB

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1B2E8E

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

Preview Lab → · Contrast checker → · Palette generator →