#1B4475#1B4475

#1B4475 is a dark, moderate cyan. Relative luminance 0.057; OKLCH L 38.5% C 0.095 H 254.7°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#1B4475
RGB	rgb(27, 68, 117)
HSL	hsl(213, 63%, 28%)
HSV	hsv(213, 77%, 46%)
CMYK	cmyk(76.9%, 41.9%, 0%, 54.1%)
CIE-LAB	lab(28.51, 4.17, -32.23)
CIE-LCH	lch(28.51, 32.50, 277.37°)
OKLab	oklab(38.46% -0.0251 -0.092)
OKLCH	oklch(38.46% 0.095 254.7)
XYZ	xyz(5.7288, 5.6510, 17.6150)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4475 #754C1B

analogous

#1B7175 #1B4475 #1F1B75

triadic

#1B4475 #751B44 #44751B

tetradic

#1B4475 #751B71 #754C1B #1B751F

square

#1B4475 #751B71 #754C1B #1B751F

split-complementary

#1B4475 #751F1B #71751B

monochromatic

#060E19 #102743 #1B4475 #2661A7 #397ED1

Accessibility & contrast

On white

9.86

#1B4475 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#1B4475 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4475

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4475	#FFFFFF	#000000	##FFFFFF
##1B4475	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4877

Deuteranopia (green-blind)

#1E3F74

Tritanopia (blue-blind)

#005056

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1b4475;
/* rgb */ color: rgb(27, 68, 117);
/* oklch */ color: oklch(38.5% 0.095 254.7);

Tailwind

colors: {
  custom: {
    50: '#65779d',
    500: '#1b4475',
    950: '#000000',
  },
}

SCSS

$custom: #1b4475;
$custom-light: #65779d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4475",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 117
  },
  "hsl": {
    "h": 212.667,
    "s": 62.5,
    "l": 28.235
  },
  "oklch": {
    "l": 0.38464,
    "c": 0.09536,
    "h": 254.7
  },
  "luminance": 0.05652
}

Semantic roles & 50–950 ramp

primary

#1B4475

secondary

#A97A42

accent

#9B42E6

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1B4475

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

Preview Lab → · Contrast checker → · Palette generator →