#1F5F8A#1F5F8A

#1F5F8A is a mid, moderate cyan. Relative luminance 0.103; OKLCH L 46.6% C 0.094 H 242.5°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#1F5F8A
RGB	rgb(31, 95, 138)
HSL	hsl(204, 63%, 33%)
HSV	hsv(204, 78%, 54%)
CMYK	cmyk(77.5%, 31.2%, 0%, 45.9%)
CIE-LAB	lab(38.39, -4.52, -29.57)
CIE-LCH	lch(38.39, 29.91, 261.31°)
OKLab	oklab(46.64% -0.0436 -0.0837)
OKLCH	oklch(46.64% 0.094 242.5)
XYZ	xyz(9.2429, 10.3096, 25.5426)
Luminance	0.1031 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5F8A #8A4A1F

analogous

#1F8A7F #1F5F8A #1F298A

triadic

#1F5F8A #8A1F5F #5F8A1F

tetradic

#1F5F8A #7F1F8A #8A4A1F #298A1F

square

#1F5F8A #7F1F8A #8A4A1F #298A1F

split-complementary

#1F5F8A #8A1F29 #8A7F1F

monochromatic

#091A26 #143D58 #1F5F8A #2A81BC #4C9FD7

Accessibility & contrast

On white

6.86

#1F5F8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#1F5F8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5F8A

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5F8A	#FFFFFF	#000000	##FFFFFF
##1F5F8A	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B608C

Deuteranopia (green-blind)

#3C5689

Tritanopia (blue-blind)

#006A6E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1f5f8a;
/* rgb */ color: rgb(31, 95, 138);
/* oklch */ color: oklch(46.6% 0.094 242.5);

Tailwind

colors: {
  custom: {
    50: '#6b8cac',
    500: '#1f5f8a',
    950: '#000000',
  },
}

SCSS

$custom: #1f5f8a;
$custom-light: #6b8cac;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5f8a",
  "rgb": {
    "r": 31,
    "g": 95,
    "b": 138
  },
  "hsl": {
    "h": 204.112,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.46641,
    "c": 0.09441,
    "h": 242.5
  },
  "luminance": 0.10311
}

Semantic roles & 50–950 ramp

primary

#1F5F8A

secondary

#BA784B

accent

#8441E6

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C10

muted

#7A7D7F

Preview Lab

Preview with #1F5F8A

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

Preview Lab → · Contrast checker → · Palette generator →