#1F587D#1F587D

#1F587D is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.1% C 0.084 H 241.1°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#1F587D
RGB	rgb(31, 88, 125)
HSL	hsl(204, 60%, 31%)
HSV	hsv(204, 75%, 49%)
CMYK	cmyk(75.2%, 29.6%, 0%, 51%)
CIE-LAB	lab(35.50, -5.12, -26.17)
CIE-LCH	lch(35.50, 26.66, 258.93°)
OKLab	oklab(44.14% -0.0408 -0.0739)
OKLCH	oklch(44.14% 0.084 241.1)
XYZ	xyz(7.7550, 8.7505, 20.6784)
Luminance	0.0875 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F587D #7D441F

analogous

#1F7D73 #1F587D #1F297D

triadic

#1F587D #7D1F58 #587D1F

tetradic

#1F587D #731F7D #7D441F #297D1F

square

#1F587D #731F7D #7D441F #297D1F

split-complementary

#1F587D #7D1F29 #7D731F

monochromatic

#07131B #13354C #1F587D #2B7BAE #459AD1

Accessibility & contrast

On white

7.64

#1F587D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#1F587D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F587D

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F587D	#FFFFFF	#000000	##FFFFFF
##1F587D	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47587F

Deuteranopia (green-blind)

#3A4F7C

Tritanopia (blue-blind)

#006165

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1f587d;
/* rgb */ color: rgb(31, 88, 125);
/* oklch */ color: oklch(44.1% 0.084 241.1);

Tailwind

colors: {
  custom: {
    50: '#6887a3',
    500: '#1f587d',
    950: '#000000',
  },
}

SCSS

$custom: #1f587d;
$custom-light: #6887a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f587d",
  "rgb": {
    "r": 31,
    "g": 88,
    "b": 125
  },
  "hsl": {
    "h": 203.617,
    "s": 60.256,
    "l": 30.588
  },
  "oklch": {
    "l": 0.44135,
    "c": 0.08444,
    "h": 241.1
  },
  "luminance": 0.08751
}

Semantic roles & 50–950 ramp

primary

#1F587D

secondary

#B07148

accent

#8344E3

background

#F6F8FA

surface

#EBEFF3

border

#C6CACD

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1F587D

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

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