#1F516B#1F516B

#1F516B is a dark, moderate cyan. Relative luminance 0.072; OKLCH L 41.3% C 0.069 H 234.6°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#1F516B
RGB	rgb(31, 81, 107)
HSL	hsl(201, 55%, 27%)
HSV	hsv(201, 71%, 42%)
CMYK	cmyk(71%, 24.3%, 0%, 58%)
CIE-LAB	lab(32.34, -7.52, -19.90)
CIE-LCH	lch(32.34, 21.27, 249.30°)
OKLab	oklab(41.34% -0.0397 -0.0559)
OKLCH	oklch(41.34% 0.069 234.6)
XYZ	xyz(6.1603, 7.2370, 14.9793)
Luminance	0.0724 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F516B #6B391F

analogous

#1F6B5F #1F516B #1F2B6B

triadic

#1F516B #6B1F51 #516B1F

tetradic

#1F516B #5F1F6B #6B391F #2B6B1F

square

#1F516B #5F1F6B #6B391F #2B6B1F

split-complementary

#1F516B #6B1F2B #6B5F1F

monochromatic

#071218 #112D3C #1F516B #2D759A #3D98C7

Accessibility & contrast

On white

8.58

#1F516B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1F516B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F516B

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F516B	#FFFFFF	#000000	##FFFFFF
##1F516B	1.00	8.58	2.45	8.58
#FFFFFF	8.58	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#44506C

Deuteranopia (green-blind)

#3A496B

Tritanopia (blue-blind)

#00585A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1f516b;
/* rgb */ color: rgb(31, 81, 107);
/* oklch */ color: oklch(41.3% 0.069 234.6);

Tailwind

colors: {
  custom: {
    50: '#658195',
    500: '#1f516b',
    950: '#000000',
  },
}

SCSS

$custom: #1f516b;
$custom-light: #658195;
$custom-dark: #000000;

JSON

{
  "hex": "#1f516b",
  "rgb": {
    "r": 31,
    "g": 81,
    "b": 107
  },
  "hsl": {
    "h": 200.526,
    "s": 55.072,
    "l": 27.059
  },
  "oklch": {
    "l": 0.4134,
    "c": 0.06854,
    "h": 234.6
  },
  "luminance": 0.07238
}

Semantic roles & 50–950 ramp

primary

#1F516B

secondary

#9F6547

accent

#7C49DE

background

#F6F7F9

surface

#EBEEF1

border

#C6C9CB

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #1F516B

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

Preview Lab → · Contrast checker → · Palette generator →