#1F5587#1F5587

#1F5587 is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 44.0% C 0.100 H 249.8°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#1F5587
RGB	rgb(31, 85, 135)
HSL	hsl(209, 63%, 33%)
HSV	hsv(209, 77%, 53%)
CMYK	cmyk(77%, 37%, 0%, 47.1%)
CIE-LAB	lab(35.08, 0.64, -32.97)
CIE-LCH	lch(35.08, 32.98, 271.12°)
OKLab	oklab(43.98% -0.0345 -0.0938)
OKLCH	oklch(43.98% 0.1 249.8)
XYZ	xyz(8.1851, 8.5366, 24.1333)
Luminance	0.0854 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5587 #87511F

analogous

#1F8785 #1F5587 #1F2187

triadic

#1F5587 #871F55 #55871F

tetradic

#1F5587 #851F87 #87511F #21871F

square

#1F5587 #851F87 #87511F #21871F

split-complementary

#1F5587 #871F21 #87851F

monochromatic

#081623 #143655 #1F5587 #2A74B9 #4B93D6

Accessibility & contrast

On white

7.76

#1F5587 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#1F5587 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5587

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5587	#FFFFFF	#000000	##FFFFFF
##1F5587	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E5889

Deuteranopia (green-blind)

#2F4E86

Tritanopia (blue-blind)

#006167

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1f5587;
/* rgb */ color: rgb(31, 85, 135);
/* oklch */ color: oklch(44.0% 0.100 249.8);

Tailwind

colors: {
  custom: {
    50: '#6a84aa',
    500: '#1f5587',
    950: '#000000',
  },
}

SCSS

$custom: #1f5587;
$custom-light: #6a84aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5587",
  "rgb": {
    "r": 31,
    "g": 85,
    "b": 135
  },
  "hsl": {
    "h": 208.846,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.43976,
    "c": 0.09999,
    "h": 249.8
  },
  "luminance": 0.08538
}

Semantic roles & 50–950 ramp

primary

#1F5587

secondary

#B87F4A

accent

#9142E6

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1F5587

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

Preview Lab → · Contrast checker → · Palette generator →