#1D597F#1D597F

#1D597F is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.4% C 0.087 H 240.9°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#1D597F
RGB	rgb(29, 89, 127)
HSL	hsl(203, 63%, 31%)
HSV	hsv(203, 77%, 50%)
CMYK	cmyk(77.2%, 29.9%, 0%, 50.2%)
CIE-LAB	lab(35.86, -5.27, -26.83)
CIE-LCH	lch(35.86, 27.34, 258.89°)
OKLab	oklab(44.44% -0.0423 -0.0759)
OKLCH	oklch(44.44% 0.087 240.9)
XYZ	xyz(7.9083, 8.9374, 21.3828)
Luminance	0.0894 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D597F #7F431D

analogous

#1D7F74 #1D597F #1D287F

triadic

#1D597F #7F1D59 #597F1D

tetradic

#1D597F #741D7F #7F431D #287F1D

square

#1D597F #741D7F #7F431D #287F1D

split-complementary

#1D597F #7F1D28 #7F741D

monochromatic

#06131B #12364D #1D597F #287CB1 #429CD4

Accessibility & contrast

On white

7.53

#1D597F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#1D597F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D597F

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D597F	#FFFFFF	#000000	##FFFFFF
##1D597F	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475981

Deuteranopia (green-blind)

#3A507E

Tritanopia (blue-blind)

#006266

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1d597f;
/* rgb */ color: rgb(29, 89, 127);
/* oklch */ color: oklch(44.4% 0.087 240.9);

Tailwind

colors: {
  custom: {
    50: '#6887a4',
    500: '#1d597f',
    950: '#000000',
  },
}

SCSS

$custom: #1d597f;
$custom-light: #6887a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d597f",
  "rgb": {
    "r": 29,
    "g": 89,
    "b": 127
  },
  "hsl": {
    "h": 203.265,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.4444,
    "c": 0.08686,
    "h": 240.9
  },
  "luminance": 0.08938
}

Semantic roles & 50–950 ramp

primary

#1D597F

secondary

#B27045

accent

#8142E6

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1D597F

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

Preview Lab → · Contrast checker → · Palette generator →