#1B2A76#1B2A76

#1B2A76 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.6% C 0.131 H 269.1°. Best body text is #FFFFFF at 12.81:1 contrast (WCAG AA passes).

Color values

HEX	#1B2A76
RGB	rgb(27, 42, 118)
HSL	hsl(230, 63%, 28%)
HSV	hsv(230, 77%, 46%)
CMYK	cmyk(77.1%, 64.4%, 0%, 53.7%)
CIE-LAB	lab(20.81, 22.85, -45.29)
CIE-LCH	lch(20.81, 50.73, 296.77°)
OKLab	oklab(32.63% -0.002 -0.1309)
OKLCH	oklch(32.63% 0.131 269.1)
XYZ	xyz(4.5488, 3.1965, 17.5133)
Luminance	0.0320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2A76 #76671B

analogous

#1B5776 #1B2A76 #391B76

triadic

#1B2A76 #761B2A #2A761B

tetradic

#1B2A76 #761B57 #76671B #1B7639

square

#1B2A76 #761B57 #76671B #1B7639

split-complementary

#1B2A76 #76391B #57761B

monochromatic

#060919 #101844 #1B2A76 #263CA8 #3A53D2

Accessibility & contrast

On white

12.81

#1B2A76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1B2A76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2A76

12.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2A76	#FFFFFF	#000000	##FFFFFF
##1B2A76	1.00	12.81	1.64	12.81
#FFFFFF	12.81	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003678

Deuteranopia (green-blind)

#002E75

Tritanopia (blue-blind)

#003E4B

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1b2a76;
/* rgb */ color: rgb(27, 42, 118);
/* oklch */ color: oklch(32.6% 0.131 269.1);

Tailwind

colors: {
  custom: {
    50: '#66639e',
    500: '#1b2a76',
    950: '#000000',
  },
}

SCSS

$custom: #1b2a76;
$custom-light: #66639e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2a76",
  "rgb": {
    "r": 27,
    "g": 42,
    "b": 118
  },
  "hsl": {
    "h": 230.11,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.32626,
    "c": 0.13088,
    "h": 269.1
  },
  "luminance": 0.03197
}

Semantic roles & 50–950 ramp

primary

#1B2A76

secondary

#AA9942

accent

#CB42E6

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050E

muted

#7A797E

Preview Lab

Preview with #1B2A76

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

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