#1B515E#1B515E

#1B515E is a dark, muted cyan. Relative luminance 0.069; OKLCH L 40.6% C 0.060 H 216.7°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#1B515E
RGB	rgb(27, 81, 94)
HSL	hsl(192, 55%, 24%)
HSV	hsv(192, 71%, 37%)
CMYK	cmyk(71.3%, 13.8%, 0%, 63.1%)
CIE-LAB	lab(31.64, -12.95, -12.79)
CIE-LCH	lch(31.64, 18.20, 224.64°)
OKLab	oklab(40.55% -0.0477 -0.0356)
OKLCH	oklch(40.55% 0.06 216.7)
XYZ	xyz(5.4140, 6.9254, 11.6389)
Luminance	0.0693 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B515E #5E281B

analogous

#1B5E49 #1B515E #1B2F5E

triadic

#1B515E #5E1B51 #515E1B

tetradic

#1B515E #491B5E #5E281B #2F5E1B

square

#1B515E #491B5E #5E281B #2F5E1B

split-complementary

#1B515E #5E1B2F #5E491B

monochromatic

#071418 #0D282E #1B515E #297A8E #36A3BD

Accessibility & contrast

On white

8.80

#1B515E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1B515E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B515E

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B515E	#FFFFFF	#000000	##FFFFFF
##1B515E	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484E5F

Deuteranopia (green-blind)

#3F475E

Tritanopia (blue-blind)

#005655

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b515e;
/* rgb */ color: rgb(27, 81, 94);
/* oklch */ color: oklch(40.6% 0.060 216.7);

Tailwind

colors: {
  custom: {
    50: '#61828b',
    500: '#1b515e',
    950: '#000000',
  },
}

SCSS

$custom: #1b515e;
$custom-light: #61828b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b515e",
  "rgb": {
    "r": 27,
    "g": 81,
    "b": 94
  },
  "hsl": {
    "h": 191.642,
    "s": 55.372,
    "l": 23.725
  },
  "oklch": {
    "l": 0.40551,
    "c": 0.05951,
    "h": 216.7
  },
  "luminance": 0.06926
}

Semantic roles & 50–950 ramp

primary

#1B515E

secondary

#945141

accent

#6649DF

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#050A0C

muted

#7A7C7D

Preview Lab

Preview with #1B515E

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

Preview Lab → · Contrast checker → · Palette generator →