#1F515B#1F515B

#1F515B is a dark, muted cyan. Relative luminance 0.069; OKLCH L 40.6% C 0.055 H 212.9°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#1F515B
RGB	rgb(31, 81, 91)
HSL	hsl(190, 49%, 24%)
HSV	hsv(190, 66%, 36%)
CMYK	cmyk(65.9%, 11%, 0%, 64.3%)
CIE-LAB	lab(31.65, -13.23, -10.85)
CIE-LCH	lch(31.65, 17.11, 219.36°)
OKLab	oklab(40.56% -0.0465 -0.0301)
OKLCH	oklch(40.56% 0.055 212.9)
XYZ	xyz(5.3951, 6.9309, 10.9490)
Luminance	0.0693 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F515B #5B291F

analogous

#1F5B47 #1F515B #1F335B

triadic

#1F515B #5B1F51 #515B1F

tetradic

#1F515B #471F5B #5B291F #335B1F

square

#1F515B #471F5B #5B291F #335B1F

split-complementary

#1F515B #5B1F33 #5B471F

monochromatic

#081417 #0F282D #1F515B #2F7A89 #3EA2B6

Accessibility & contrast

On white

8.80

#1F515B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1F515B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F515B

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F515B	#FFFFFF	#000000	##FFFFFF
##1F515B	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)

#494E5C

Deuteranopia (green-blind)

#40485B

Tritanopia (blue-blind)

#005554

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f515b;
/* rgb */ color: rgb(31, 81, 91);
/* oklch */ color: oklch(40.6% 0.055 212.9);

Tailwind

colors: {
  custom: {
    50: '#628289',
    500: '#1f515b',
    950: '#000000',
  },
}

SCSS

$custom: #1f515b;
$custom-light: #628289;
$custom-dark: #000000;

JSON

{
  "hex": "#1f515b",
  "rgb": {
    "r": 31,
    "g": 81,
    "b": 91
  },
  "hsl": {
    "h": 190,
    "s": 49.18,
    "l": 23.922
  },
  "oklch": {
    "l": 0.40559,
    "c": 0.05539,
    "h": 212.9
  },
  "luminance": 0.06931
}

Semantic roles & 50–950 ramp

primary

#1F515B

secondary

#905246

accent

#664FD9

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#050A0B

muted

#7A7C7C

Preview Lab

Preview with #1F515B

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

Preview Lab → · Contrast checker → · Palette generator →