#1B2E77#1B2E77

#1B2E77 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.5% C 0.127 H 267.7°. Best body text is #FFFFFF at 12.33:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E77
RGB	rgb(27, 46, 119)
HSL	hsl(228, 63%, 29%)
HSV	hsv(228, 77%, 47%)
CMYK	cmyk(77.3%, 61.3%, 0%, 53.3%)
CIE-LAB	lab(22.01, 20.43, -43.98)
CIE-LCH	lch(22.01, 48.49, 294.92°)
OKLab	oklab(33.54% -0.005 -0.1269)
OKLCH	oklch(33.54% 0.127 267.7)
XYZ	xyz(4.7576, 3.5184, 17.8776)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E77 #77641B

analogous

#1B5C77 #1B2E77 #361B77

triadic

#1B2E77 #771B2E #2E771B

tetradic

#1B2E77 #771B5C #77641B #1B7736

square

#1B2E77 #771B5C #77641B #1B7736

split-complementary

#1B2E77 #77361B #5C771B

monochromatic

#060A19 #101B45 #1B2E77 #2641A9 #3A5AD2

Accessibility & contrast

On white

12.33

#1B2E77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1B2E77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E77

12.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E77	#FFFFFF	#000000	##FFFFFF
##1B2E77	1.00	12.33	1.70	12.33
#FFFFFF	12.33	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003979

Deuteranopia (green-blind)

#003176

Tritanopia (blue-blind)

#00404D

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2e77;
/* rgb */ color: rgb(27, 46, 119);
/* oklch */ color: oklch(33.5% 0.127 267.7);

Tailwind

colors: {
  custom: {
    50: '#66669f',
    500: '#1b2e77',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e77;
$custom-light: #66669f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e77",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 119
  },
  "hsl": {
    "h": 227.609,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.33543,
    "c": 0.12705,
    "h": 267.7
  },
  "luminance": 0.03519
}

Semantic roles & 50–950 ramp

primary

#1B2E77

secondary

#AB9642

accent

#C442E6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07050E

muted

#7A7A7E

Preview Lab

Preview with #1B2E77

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

Preview Lab → · Contrast checker → · Palette generator →