#1B2E75#1B2E75

#1B2E75 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.4% C 0.124 H 267.6°. Best body text is #FFFFFF at 12.40:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E75
RGB	rgb(27, 46, 117)
HSL	hsl(227, 63%, 28%)
HSV	hsv(227, 77%, 46%)
CMYK	cmyk(76.9%, 60.7%, 0%, 54.1%)
CIE-LAB	lab(21.84, 19.62, -42.98)
CIE-LCH	lch(21.84, 47.25, 294.54°)
OKLab	oklab(33.36% -0.0051 -0.124)
OKLCH	oklch(33.36% 0.124 267.6)
XYZ	xyz(4.6388, 3.4709, 17.2516)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E75 #75621B

analogous

#1B5B75 #1B2E75 #351B75

triadic

#1B2E75 #751B2E #2E751B

tetradic

#1B2E75 #751B5B #75621B #1B7535

square

#1B2E75 #751B5B #75621B #1B7535

split-complementary

#1B2E75 #75351B #5B751B

monochromatic

#060A19 #101A43 #1B2E75 #2642A7 #3959D1

Accessibility & contrast

On white

12.40

#1B2E75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1B2E75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E75

12.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E75	#FFFFFF	#000000	##FFFFFF
##1B2E75	1.00	12.40	1.69	12.40
#FFFFFF	12.40	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003977

Deuteranopia (green-blind)

#003074

Tritanopia (blue-blind)

#00404C

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b2e75;
/* rgb */ color: rgb(27, 46, 117);
/* oklch */ color: oklch(33.4% 0.124 267.6);

Tailwind

colors: {
  custom: {
    50: '#66669d',
    500: '#1b2e75',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e75;
$custom-light: #66669d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e75",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 117
  },
  "hsl": {
    "h": 227.333,
    "s": 62.5,
    "l": 28.235
  },
  "oklch": {
    "l": 0.33361,
    "c": 0.12413,
    "h": 267.6
  },
  "luminance": 0.03471
}

Semantic roles & 50–950 ramp

primary

#1B2E75

secondary

#A99442

accent

#C342E6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07050E

muted

#7A7A7E

Preview Lab

Preview with #1B2E75

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

Preview Lab → · Contrast checker → · Palette generator →