#1F5871#1F5871

#1F5871 is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.5% C 0.071 H 230.6°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#1F5871
RGB	rgb(31, 88, 113)
HSL	hsl(198, 57%, 28%)
HSV	hsv(198, 73%, 44%)
CMYK	cmyk(72.6%, 22.1%, 0%, 55.7%)
CIE-LAB	lab(34.93, -9.59, -19.64)
CIE-LCH	lch(34.93, 21.86, 243.97°)
OKLab	oklab(43.49% -0.0452 -0.0551)
OKLCH	oklch(43.49% 0.071 230.6)
XYZ	xyz(7.0342, 8.4622, 16.8822)
Luminance	0.0846 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5871 #71381F

analogous

#1F7161 #1F5871 #1F2F71

triadic

#1F5871 #711F58 #58711F

tetradic

#1F5871 #611F71 #71381F #2F711F

square

#1F5871 #611F71 #71381F #2F711F

split-complementary

#1F5871 #711F2F #71611F

monochromatic

#071318 #123341 #1F5871 #2C7DA1 #40A0CB

Accessibility & contrast

On white

7.80

#1F5871 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#1F5871 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5871

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5871	#FFFFFF	#000000	##FFFFFF
##1F5871	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B5772

Deuteranopia (green-blind)

#404F71

Tritanopia (blue-blind)

#005F60

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1f5871;
/* rgb */ color: rgb(31, 88, 113);
/* oklch */ color: oklch(43.5% 0.071 230.6);

Tailwind

colors: {
  custom: {
    50: '#66879a',
    500: '#1f5871',
    950: '#000000',
  },
}

SCSS

$custom: #1f5871;
$custom-light: #66879a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5871",
  "rgb": {
    "r": 31,
    "g": 88,
    "b": 113
  },
  "hsl": {
    "h": 198.293,
    "s": 56.944,
    "l": 28.235
  },
  "oklch": {
    "l": 0.43492,
    "c": 0.07128,
    "h": 230.6
  },
  "luminance": 0.08463
}

Semantic roles & 50–950 ramp

primary

#1F5871

secondary

#A56447

accent

#7648E0

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #1F5871

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

Preview Lab → · Contrast checker → · Palette generator →