#1B4473#1B4473

#1B4473 is a dark, moderate cyan. Relative luminance 0.056; OKLCH L 38.3% C 0.092 H 253.9°. Best body text is #FFFFFF at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#1B4473
RGB	rgb(27, 68, 115)
HSL	hsl(212, 62%, 28%)
HSV	hsv(212, 77%, 45%)
CMYK	cmyk(76.5%, 40.9%, 0%, 54.9%)
CIE-LAB	lab(28.39, 3.36, -31.16)
CIE-LCH	lch(28.39, 31.34, 276.16°)
OKLab	oklab(38.33% -0.0256 -0.0889)
OKLCH	oklch(38.33% 0.092 253.9)
XYZ	xyz(5.6125, 5.6044, 17.0023)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4473 #734A1B

analogous

#1B7073 #1B4473 #1E1B73

triadic

#1B4473 #731B44 #44731B

tetradic

#1B4473 #731B70 #734A1B #1B731E

square

#1B4473 #731B70 #734A1B #1B731E

split-complementary

#1B4473 #731E1B #70731B

monochromatic

#060F19 #0F2741 #1B4473 #2761A5 #387FD0

Accessibility & contrast

On white

9.90

#1B4473 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1B4473 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4473

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4473	#FFFFFF	#000000	##FFFFFF
##1B4473	1.00	9.90	2.12	9.90
#FFFFFF	9.90	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4775

Deuteranopia (green-blind)

#203F72

Tritanopia (blue-blind)

#004F56

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1b4473;
/* rgb */ color: rgb(27, 68, 115);
/* oklch */ color: oklch(38.3% 0.092 253.9);

Tailwind

colors: {
  custom: {
    50: '#64779b',
    500: '#1b4473',
    950: '#000000',
  },
}

SCSS

$custom: #1b4473;
$custom-light: #64779b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4473",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 115
  },
  "hsl": {
    "h": 212.045,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.38329,
    "c": 0.09249,
    "h": 253.9
  },
  "luminance": 0.05605
}

Semantic roles & 50–950 ramp

primary

#1B4473

secondary

#A87842

accent

#9943E5

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1B4473

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

Preview Lab → · Contrast checker → · Palette generator →