#1B2D76#1B2D76

#1B2D76 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.2% C 0.127 H 268.1°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#1B2D76
RGB	rgb(27, 45, 118)
HSL	hsl(228, 63%, 28%)
HSV	hsv(228, 77%, 46%)
CMYK	cmyk(77.1%, 61.9%, 0%, 53.7%)
CIE-LAB	lab(21.64, 20.74, -43.94)
CIE-LCH	lch(21.64, 48.59, 295.26°)
OKLab	oklab(33.24% -0.0043 -0.1268)
OKLCH	oklch(33.24% 0.127 268.1)
XYZ	xyz(4.6593, 3.4173, 17.5501)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2D76 #76641B

analogous

#1B5A76 #1B2D76 #361B76

triadic

#1B2D76 #761B2D #2D761B

tetradic

#1B2D76 #761B5A #76641B #1B7636

square

#1B2D76 #761B5A #76641B #1B7636

split-complementary

#1B2D76 #76361B #5A761B

monochromatic

#060919 #101A44 #1B2D76 #2640A8 #3A58D2

Accessibility & contrast

On white

12.47

#1B2D76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1B2D76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2D76

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2D76	#FFFFFF	#000000	##FFFFFF
##1B2D76	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003878

Deuteranopia (green-blind)

#003075

Tritanopia (blue-blind)

#003F4D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b2d76;
/* rgb */ color: rgb(27, 45, 118);
/* oklch */ color: oklch(33.2% 0.127 268.1);

Tailwind

colors: {
  custom: {
    50: '#66659e',
    500: '#1b2d76',
    950: '#000000',
  },
}

SCSS

$custom: #1b2d76;
$custom-light: #66659e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2d76",
  "rgb": {
    "r": 27,
    "g": 45,
    "b": 118
  },
  "hsl": {
    "h": 228.132,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.33242,
    "c": 0.12692,
    "h": 268.1
  },
  "luminance": 0.03418
}

Semantic roles & 50–950 ramp

primary

#1B2D76

secondary

#AA9642

accent

#C542E6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07050E

muted

#7A7A7E

Preview Lab

Preview with #1B2D76

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

Preview Lab → · Contrast checker → · Palette generator →