#1B2E7E#1B2E7E

#1B2E7E is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.2% C 0.137 H 267.9°. Best body text is #FFFFFF at 12.08:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E7E
RGB	rgb(27, 46, 126)
HSL	hsl(228, 65%, 30%)
HSV	hsv(228, 79%, 49%)
CMYK	cmyk(78.6%, 63.5%, 0%, 50.6%)
CIE-LAB	lab(22.63, 23.23, -47.42)
CIE-LCH	lch(22.63, 52.80, 296.10°)
OKLab	oklab(34.2% -0.005 -0.137)
OKLCH	oklch(34.2% 0.137 267.9)
XYZ	xyz(5.1936, 3.6928, 20.1737)
Luminance	0.0369 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E7E #7E6B1B

analogous

#1B5F7E #1B2E7E #3A1B7E

triadic

#1B2E7E #7E1B2E #2E7E1B

tetradic

#1B2E7E #7E1B5F #7E6B1B #1B7E3A

square

#1B2E7E #7E1B5F #7E6B1B #1B7E3A

split-complementary

#1B2E7E #7E3A1B #5F7E1B

monochromatic

#050919 #101C4C #1B2E7E #2640B0 #3E5BD6

Accessibility & contrast

On white

12.08

#1B2E7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1B2E7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E7E

12.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E7E	#FFFFFF	#000000	##FFFFFF
##1B2E7E	1.00	12.08	1.74	12.08
#FFFFFF	12.08	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B81

Deuteranopia (green-blind)

#00327C

Tritanopia (blue-blind)

#004351

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b2e7e;
/* rgb */ color: rgb(27, 46, 126);
/* oklch */ color: oklch(34.2% 0.137 267.9);

Tailwind

colors: {
  custom: {
    50: '#6866a4',
    500: '#1b2e7e',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e7e;
$custom-light: #6866a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e7e",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 126
  },
  "hsl": {
    "h": 228.485,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.34195,
    "c": 0.13713,
    "h": 267.9
  },
  "luminance": 0.03693
}

Semantic roles & 50–950 ramp

primary

#1B2E7E

secondary

#B29D43

accent

#C840E8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1B2E7E

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

Preview Lab → · Contrast checker → · Palette generator →