#1B4875#1B4875

#1B4875 is a dark, moderate cyan. Relative luminance 0.062; OKLCH L 39.5% C 0.091 H 251.3°. Best body text is #FFFFFF at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#1B4875
RGB	rgb(27, 72, 117)
HSL	hsl(210, 63%, 28%)
HSV	hsv(210, 77%, 46%)
CMYK	cmyk(76.9%, 38.5%, 0%, 54.1%)
CIE-LAB	lab(29.79, 1.48, -30.20)
CIE-LCH	lch(29.79, 30.23, 272.80°)
OKLab	oklab(39.46% -0.0292 -0.086)
OKLCH	oklch(39.46% 0.091 251.3)
XYZ	xyz(5.9790, 6.1514, 17.6984)
Luminance	0.0615 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4875 #75481B

analogous

#1B7575 #1B4875 #1B1B75

triadic

#1B4875 #751B48 #48751B

tetradic

#1B4875 #751B75 #75481B #1B751B

square

#1B4875 #751B75 #75481B #1B751B

split-complementary

#1B4875 #751B1B #75751B

monochromatic

#060F19 #102943 #1B4875 #2667A7 #3985D1

Accessibility & contrast

On white

9.42

#1B4875 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#1B4875 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4875

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4875	#FFFFFF	#000000	##FFFFFF
##1B4875	1.00	9.42	2.23	9.42
#FFFFFF	9.42	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#334B77

Deuteranopia (green-blind)

#264274

Tritanopia (blue-blind)

#005359

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1b4875;
/* rgb */ color: rgb(27, 72, 117);
/* oklch */ color: oklch(39.5% 0.091 251.3);

Tailwind

colors: {
  custom: {
    50: '#657a9d',
    500: '#1b4875',
    950: '#000000',
  },
}

SCSS

$custom: #1b4875;
$custom-light: #657a9d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4875",
  "rgb": {
    "r": 27,
    "g": 72,
    "b": 117
  },
  "hsl": {
    "h": 210,
    "s": 62.5,
    "l": 28.235
  },
  "oklch": {
    "l": 0.39461,
    "c": 0.09078,
    "h": 251.3
  },
  "luminance": 0.06152
}

Semantic roles & 50–950 ramp

primary

#1B4875

secondary

#A97642

accent

#9442E6

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1B4875

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

Preview Lab → · Contrast checker → · Palette generator →