#1B2E73#1B2E73

#1B2E73 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.2% C 0.121 H 267.6°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E73
RGB	rgb(27, 46, 115)
HSL	hsl(227, 62%, 28%)
HSV	hsv(227, 77%, 45%)
CMYK	cmyk(76.5%, 60%, 0%, 54.9%)
CIE-LAB	lab(21.67, 18.82, -41.98)
CIE-LCH	lch(21.67, 46.00, 294.14°)
OKLab	oklab(33.18% -0.0052 -0.1211)
OKLCH	oklch(33.18% 0.121 267.6)
XYZ	xyz(4.5224, 3.4243, 16.6390)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E73 #73601B

analogous

#1B5A73 #1B2E73 #341B73

triadic

#1B2E73 #731B2E #2E731B

tetradic

#1B2E73 #731B5A #73601B #1B7334

square

#1B2E73 #731B5A #73601B #1B7334

split-complementary

#1B2E73 #73341B #5A731B

monochromatic

#060A19 #0F1A41 #1B2E73 #2742A5 #3859D0

Accessibility & contrast

On white

12.46

#1B2E73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1B2E73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E73

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E73	#FFFFFF	#000000	##FFFFFF
##1B2E73	1.00	12.46	1.69	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003875

Deuteranopia (green-blind)

#003072

Tritanopia (blue-blind)

#003F4B

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b2e73;
/* rgb */ color: rgb(27, 46, 115);
/* oklch */ color: oklch(33.2% 0.121 267.6);

Tailwind

colors: {
  custom: {
    50: '#65669c',
    500: '#1b2e73',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e73;
$custom-light: #65669c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e73",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 115
  },
  "hsl": {
    "h": 227.045,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.3318,
    "c": 0.12119,
    "h": 267.6
  },
  "luminance": 0.03425
}

Semantic roles & 50–950 ramp

primary

#1B2E73

secondary

#A89242

accent

#C243E5

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #1B2E73

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

Preview Lab → · Contrast checker → · Palette generator →