#1D517F#1D517F

#1D517F is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.4% C 0.094 H 248.8°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#1D517F
RGB	rgb(29, 81, 127)
HSL	hsl(208, 63%, 31%)
HSV	hsv(208, 77%, 50%)
CMYK	cmyk(77.2%, 36.2%, 0%, 50.2%)
CIE-LAB	lab(33.30, -0.18, -30.87)
CIE-LCH	lch(33.30, 30.87, 269.66°)
OKLab	oklab(42.42% -0.0341 -0.0877)
OKLCH	oklch(42.42% 0.094 248.8)
XYZ	xyz(7.2784, 7.6775, 21.1729)
Luminance	0.0768 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D517F #7F4B1D

analogous

#1D7F7C #1D517F #1D207F

triadic

#1D517F #7F1D51 #517F1D

tetradic

#1D517F #7C1D7F #7F4B1D #207F1D

square

#1D517F #7C1D7F #7F4B1D #207F1D

split-complementary

#1D517F #7F1D20 #7F7C1D

monochromatic

#06111B #12314D #1D517F #2871B1 #4290D4

Accessibility & contrast

On white

8.28

#1D517F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1D517F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D517F

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D517F	#FFFFFF	#000000	##FFFFFF
##1D517F	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C5381

Deuteranopia (green-blind)

#2E4A7E

Tritanopia (blue-blind)

#005C62

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d517f;
/* rgb */ color: rgb(29, 81, 127);
/* oklch */ color: oklch(42.4% 0.094 248.8);

Tailwind

colors: {
  custom: {
    50: '#6881a4',
    500: '#1d517f',
    950: '#000000',
  },
}

SCSS

$custom: #1d517f;
$custom-light: #6881a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d517f",
  "rgb": {
    "r": 29,
    "g": 81,
    "b": 127
  },
  "hsl": {
    "h": 208.163,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.42419,
    "c": 0.09415,
    "h": 248.8
  },
  "luminance": 0.07678
}

Semantic roles & 50–950 ramp

primary

#1D517F

secondary

#B27945

accent

#8F42E6

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1D517F

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

Preview Lab → · Contrast checker → · Palette generator →