#1F597F#1F597F

#1F597F is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.5% C 0.086 H 241.4°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#1F597F
RGB	rgb(31, 89, 127)
HSL	hsl(204, 61%, 31%)
HSV	hsv(204, 76%, 50%)
CMYK	cmyk(75.6%, 29.9%, 0%, 50.2%)
CIE-LAB	lab(35.92, -4.98, -26.74)
CIE-LCH	lch(35.92, 27.20, 259.44°)
OKLab	oklab(44.5% -0.0411 -0.0756)
OKLCH	oklch(44.5% 0.086 241.4)
XYZ	xyz(7.9667, 8.9675, 21.3856)
Luminance	0.0897 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F597F #7F451F

analogous

#1F7F75 #1F597F #1F297F

triadic

#1F597F #7F1F59 #597F1F

tetradic

#1F597F #751F7F #7F451F #297F1F

square

#1F597F #751F7F #7F451F #297F1F

split-complementary

#1F597F #7F1F29 #7F751F

monochromatic

#07141D #13374E #1F597F #2B7BB0 #469BD2

Accessibility & contrast

On white

7.52

#1F597F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#1F597F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F597F

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F597F	#FFFFFF	#000000	##FFFFFF
##1F597F	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475A81

Deuteranopia (green-blind)

#3A507E

Tritanopia (blue-blind)

#006266

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1f597f;
/* rgb */ color: rgb(31, 89, 127);
/* oklch */ color: oklch(44.5% 0.086 241.4);

Tailwind

colors: {
  custom: {
    50: '#6987a4',
    500: '#1f597f',
    950: '#000000',
  },
}

SCSS

$custom: #1f597f;
$custom-light: #6987a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f597f",
  "rgb": {
    "r": 31,
    "g": 89,
    "b": 127
  },
  "hsl": {
    "h": 203.75,
    "s": 60.759,
    "l": 30.98
  },
  "oklch": {
    "l": 0.44503,
    "c": 0.08605,
    "h": 241.4
  },
  "luminance": 0.08968
}

Semantic roles & 50–950 ramp

primary

#1F597F

secondary

#B27248

accent

#8344E4

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1F597F

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

Preview Lab → · Contrast checker → · Palette generator →