#1B2C76#1B2C76

#1B2C76 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.0% C 0.128 H 268.4°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#1B2C76
RGB	rgb(27, 44, 118)
HSL	hsl(229, 63%, 28%)
HSV	hsv(229, 77%, 46%)
CMYK	cmyk(77.1%, 62.7%, 0%, 53.7%)
CIE-LAB	lab(21.36, 21.44, -44.40)
CIE-LCH	lch(21.36, 49.30, 295.78°)
OKLab	oklab(33.03% -0.0035 -0.1282)
OKLCH	oklch(33.03% 0.128 268.4)
XYZ	xyz(4.6216, 3.3419, 17.5375)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2C76 #76651B

analogous

#1B5976 #1B2C76 #371B76

triadic

#1B2C76 #761B2C #2C761B

tetradic

#1B2C76 #761B59 #76651B #1B7637

square

#1B2C76 #761B59 #76651B #1B7637

split-complementary

#1B2C76 #76371B #59761B

monochromatic

#060919 #101944 #1B2C76 #263FA8 #3A56D2

Accessibility & contrast

On white

12.59

#1B2C76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1B2C76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2C76

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2C76	#FFFFFF	#000000	##FFFFFF
##1B2C76	1.00	12.59	1.67	12.59
#FFFFFF	12.59	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003878

Deuteranopia (green-blind)

#002F75

Tritanopia (blue-blind)

#003F4C

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1b2c76;
/* rgb */ color: rgb(27, 44, 118);
/* oklch */ color: oklch(33.0% 0.128 268.4);

Tailwind

colors: {
  custom: {
    50: '#66649e',
    500: '#1b2c76',
    950: '#000000',
  },
}

SCSS

$custom: #1b2c76;
$custom-light: #66649e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2c76",
  "rgb": {
    "r": 27,
    "g": 44,
    "b": 118
  },
  "hsl": {
    "h": 228.791,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.33034,
    "c": 0.12825,
    "h": 268.4
  },
  "luminance": 0.03342
}

Semantic roles & 50–950 ramp

primary

#1B2C76

secondary

#AA9742

accent

#C742E6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07050E

muted

#7A7A7E

Preview Lab

Preview with #1B2C76

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

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