#1B2D72#1B2D72

#1B2D72 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 32.9% C 0.121 H 267.9°. Best body text is #FFFFFF at 12.61:1 contrast (WCAG AA passes).

Color values

HEX	#1B2D72
RGB	rgb(27, 45, 114)
HSL	hsl(228, 62%, 28%)
HSV	hsv(228, 76%, 45%)
CMYK	cmyk(76.3%, 60.5%, 0%, 55.3%)
CIE-LAB	lab(21.30, 19.13, -41.94)
CIE-LCH	lch(21.30, 46.10, 294.51°)
OKLab	oklab(32.88% -0.0044 -0.121)
OKLCH	oklch(32.88% 0.121 267.9)
XYZ	xyz(4.4266, 3.3242, 16.3247)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2D72 #72601B

analogous

#1B5972 #1B2D72 #341B72

triadic

#1B2D72 #721B2D #2D721B

tetradic

#1B2D72 #721B59 #72601B #1B7234

square

#1B2D72 #721B59 #72601B #1B7234

split-complementary

#1B2D72 #72341B #59721B

monochromatic

#060A19 #0F1941 #1B2D72 #2741A3 #3857D0

Accessibility & contrast

On white

12.61

#1B2D72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1B2D72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2D72

12.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2D72	#FFFFFF	#000000	##FFFFFF
##1B2D72	1.00	12.61	1.67	12.61
#FFFFFF	12.61	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003774

Deuteranopia (green-blind)

#002F71

Tritanopia (blue-blind)

#003E4A

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1b2d72;
/* rgb */ color: rgb(27, 45, 114);
/* oklch */ color: oklch(32.9% 0.121 267.9);

Tailwind

colors: {
  custom: {
    50: '#65659b',
    500: '#1b2d72',
    950: '#000000',
  },
}

SCSS

$custom: #1b2d72;
$custom-light: #65659b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2d72",
  "rgb": {
    "r": 27,
    "g": 45,
    "b": 114
  },
  "hsl": {
    "h": 227.586,
    "s": 61.702,
    "l": 27.647
  },
  "oklch": {
    "l": 0.32876,
    "c": 0.12106,
    "h": 267.9
  },
  "luminance": 0.03325
}

Semantic roles & 50–950 ramp

primary

#1B2D72

secondary

#A79242

accent

#C343E5

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #1B2D72

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

Preview Lab → · Contrast checker → · Palette generator →