#1F587F#1F587F

#1F587F is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.2% C 0.087 H 242.5°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#1F587F
RGB	rgb(31, 88, 127)
HSL	hsl(204, 61%, 31%)
HSV	hsv(204, 76%, 50%)
CMYK	cmyk(75.6%, 30.7%, 0%, 50.2%)
CIE-LAB	lab(35.60, -4.36, -27.24)
CIE-LCH	lch(35.60, 27.59, 260.91°)
OKLab	oklab(44.25% -0.0401 -0.077)
OKLCH	oklch(44.25% 0.087 242.5)
XYZ	xyz(7.8841, 8.8022, 21.3580)
Luminance	0.0880 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F587F #7F461F

analogous

#1F7F76 #1F587F #1F287F

triadic

#1F587F #7F1F58 #587F1F

tetradic

#1F587F #761F7F #7F461F #287F1F

square

#1F587F #761F7F #7F461F #287F1F

split-complementary

#1F587F #7F1F28 #7F761F

monochromatic

#07141D #13364E #1F587F #2B7AB0 #4699D2

Accessibility & contrast

On white

7.61

#1F587F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#1F587F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F587F

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F587F	#FFFFFF	#000000	##FFFFFF
##1F587F	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#465981

Deuteranopia (green-blind)

#39507E

Tritanopia (blue-blind)

#006266

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1f587f;
/* rgb */ color: rgb(31, 88, 127);
/* oklch */ color: oklch(44.2% 0.087 242.5);

Tailwind

colors: {
  custom: {
    50: '#6987a4',
    500: '#1f587f',
    950: '#000000',
  },
}

SCSS

$custom: #1f587f;
$custom-light: #6987a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f587f",
  "rgb": {
    "r": 31,
    "g": 88,
    "b": 127
  },
  "hsl": {
    "h": 204.375,
    "s": 60.759,
    "l": 30.98
  },
  "oklch": {
    "l": 0.44249,
    "c": 0.08686,
    "h": 242.5
  },
  "luminance": 0.08803
}

Semantic roles & 50–950 ramp

primary

#1F587F

secondary

#B27348

accent

#8544E4

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1F587F

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

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