#1F597E#1F597E

#1F597E is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.4% C 0.085 H 240.7°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#1F597E
RGB	rgb(31, 89, 126)
HSL	hsl(203, 61%, 31%)
HSV	hsv(203, 75%, 49%)
CMYK	cmyk(75.4%, 29.4%, 0%, 50.6%)
CIE-LAB	lab(35.87, -5.36, -26.20)
CIE-LCH	lch(35.87, 26.74, 258.44°)
OKLab	oklab(44.45% -0.0415 -0.074)
OKLCH	oklch(44.45% 0.085 240.7)
XYZ	xyz(7.9019, 8.9415, 21.0441)
Luminance	0.0894 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F597E #7E441F

analogous

#1F7E73 #1F597E #1F297E

triadic

#1F597E #7E1F59 #597E1F

tetradic

#1F597E #731F7E #7E441F #297E1F

square

#1F597E #731F7E #7E441F #297E1F

split-complementary

#1F597E #7E1F29 #7E731F

monochromatic

#07141C #13364D #1F597E #2B7CAF #469BD1

Accessibility & contrast

On white

7.53

#1F597E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#1F597E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F597E

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F597E	#FFFFFF	#000000	##FFFFFF
##1F597E	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)

#485980

Deuteranopia (green-blind)

#3B507D

Tritanopia (blue-blind)

#006266

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1f597e;
/* rgb */ color: rgb(31, 89, 126);
/* oklch */ color: oklch(44.4% 0.085 240.7);

Tailwind

colors: {
  custom: {
    50: '#6887a3',
    500: '#1f597e',
    950: '#000000',
  },
}

SCSS

$custom: #1f597e;
$custom-light: #6887a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f597e",
  "rgb": {
    "r": 31,
    "g": 89,
    "b": 126
  },
  "hsl": {
    "h": 203.368,
    "s": 60.51,
    "l": 30.784
  },
  "oklch": {
    "l": 0.44447,
    "c": 0.08485,
    "h": 240.7
  },
  "luminance": 0.08942
}

Semantic roles & 50–950 ramp

primary

#1F597E

secondary

#B17148

accent

#8244E4

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1F597E

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

Preview Lab → · Contrast checker → · Palette generator →