#1F5573#1F5573

#1F5573 is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 42.8% C 0.075 H 236.7°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#1F5573
RGB	rgb(31, 85, 115)
HSL	hsl(201, 58%, 29%)
HSV	hsv(201, 73%, 45%)
CMYK	cmyk(73%, 26.1%, 0%, 54.9%)
CIE-LAB	lab(34.04, -7.02, -22.27)
CIE-LCH	lch(34.04, 23.35, 252.50°)
OKLab	oklab(42.81% -0.0411 -0.0627)
OKLCH	oklch(42.81% 0.075 236.7)
XYZ	xyz(6.9069, 8.0253, 17.4014)
Luminance	0.0803 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5573 #733D1F

analogous

#1F7367 #1F5573 #1F2B73

triadic

#1F5573 #731F55 #55731F

tetradic

#1F5573 #671F73 #733D1F #2B731F

square

#1F5573 #671F73 #733D1F #2B731F

split-complementary

#1F5573 #731F2B #73671F

monochromatic

#061218 #123143 #1F5573 #2C79A3 #419ACC

Accessibility & contrast

On white

8.06

#1F5573 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#1F5573 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5573

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5573	#FFFFFF	#000000	##FFFFFF
##1F5573	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475574

Deuteranopia (green-blind)

#3B4C72

Tritanopia (blue-blind)

#005D5F

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1f5573;
/* rgb */ color: rgb(31, 85, 115);
/* oklch */ color: oklch(42.8% 0.075 236.7);

Tailwind

colors: {
  custom: {
    50: '#66849b',
    500: '#1f5573',
    950: '#000000',
  },
}

SCSS

$custom: #1f5573;
$custom-light: #66849b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5573",
  "rgb": {
    "r": 31,
    "g": 85,
    "b": 115
  },
  "hsl": {
    "h": 201.429,
    "s": 57.534,
    "l": 28.627
  },
  "oklch": {
    "l": 0.42813,
    "c": 0.07496,
    "h": 236.7
  },
  "luminance": 0.08026
}

Semantic roles & 50–950 ramp

primary

#1F5573

secondary

#A76947

accent

#7E47E1

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #1F5573

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

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