#1B2B76#1B2B76

#1B2B76 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 32.8% C 0.130 H 268.8°. Best body text is #FFFFFF at 12.70:1 contrast (WCAG AA passes).

Color values

HEX	#1B2B76
RGB	rgb(27, 43, 118)
HSL	hsl(229, 63%, 28%)
HSV	hsv(229, 77%, 46%)
CMYK	cmyk(77.1%, 63.6%, 0%, 53.7%)
CIE-LAB	lab(21.09, 22.15, -44.85)
CIE-LCH	lch(21.09, 50.02, 296.28°)
OKLab	oklab(32.83% -0.0028 -0.1295)
OKLCH	oklch(32.83% 0.13 268.8)
XYZ	xyz(4.5848, 3.2683, 17.5252)
Luminance	0.0327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2B76 #76661B

analogous

#1B5876 #1B2B76 #381B76

triadic

#1B2B76 #761B2B #2B761B

tetradic

#1B2B76 #761B58 #76661B #1B7638

square

#1B2B76 #761B58 #76661B #1B7638

split-complementary

#1B2B76 #76381B #58761B

monochromatic

#060919 #101944 #1B2B76 #263DA8 #3A54D2

Accessibility & contrast

On white

12.70

#1B2B76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1B2B76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2B76

12.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2B76	#FFFFFF	#000000	##FFFFFF
##1B2B76	1.00	12.70	1.65	12.70
#FFFFFF	12.70	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003778

Deuteranopia (green-blind)

#002F75

Tritanopia (blue-blind)

#003E4C

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1b2b76;
/* rgb */ color: rgb(27, 43, 118);
/* oklch */ color: oklch(32.8% 0.130 268.8);

Tailwind

colors: {
  custom: {
    50: '#66649e',
    500: '#1b2b76',
    950: '#000000',
  },
}

SCSS

$custom: #1b2b76;
$custom-light: #66649e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2b76",
  "rgb": {
    "r": 27,
    "g": 43,
    "b": 118
  },
  "hsl": {
    "h": 229.451,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.32829,
    "c": 0.12957,
    "h": 268.8
  },
  "luminance": 0.03269
}

Semantic roles & 50–950 ramp

primary

#1B2B76

secondary

#AA9842

accent

#C942E6

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050E

muted

#7A797E

Preview Lab

Preview with #1B2B76

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

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