#1F5A8A#1F5A8A

#1F5A8A is a mid, moderate cyan. Relative luminance 0.094; OKLCH L 45.4% C 0.099 H 247.0°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#1F5A8A
RGB	rgb(31, 90, 138)
HSL	hsl(207, 63%, 33%)
HSV	hsv(207, 78%, 54%)
CMYK	cmyk(77.5%, 34.8%, 0%, 45.9%)
CIE-LAB	lab(36.81, -1.39, -32.06)
CIE-LCH	lch(36.81, 32.09, 267.52°)
OKLab	oklab(45.4% -0.0386 -0.0911)
OKLCH	oklch(45.4% 0.099 247)
XYZ	xyz(8.8069, 9.4376, 25.3973)
Luminance	0.0944 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5A8A #8A4F1F

analogous

#1F8A84 #1F5A8A #1F248A

triadic

#1F5A8A #8A1F5A #5A8A1F

tetradic

#1F5A8A #841F8A #8A4F1F #248A1F

square

#1F5A8A #841F8A #8A4F1F #248A1F

split-complementary

#1F5A8A #8A1F24 #8A841F

monochromatic

#091926 #143958 #1F5A8A #2A7BBC #4C99D7

Accessibility & contrast

On white

7.27

#1F5A8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#1F5A8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5A8A

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5A8A	#FFFFFF	#000000	##FFFFFF
##1F5A8A	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#445C8C

Deuteranopia (green-blind)

#355289

Tritanopia (blue-blind)

#00666B

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1f5a8a;
/* rgb */ color: rgb(31, 90, 138);
/* oklch */ color: oklch(45.4% 0.099 247.0);

Tailwind

colors: {
  custom: {
    50: '#6b88ac',
    500: '#1f5a8a',
    950: '#000000',
  },
}

SCSS

$custom: #1f5a8a;
$custom-light: #6b88ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5a8a",
  "rgb": {
    "r": 31,
    "g": 90,
    "b": 138
  },
  "hsl": {
    "h": 206.916,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.45395,
    "c": 0.09892,
    "h": 247
  },
  "luminance": 0.09439
}

Semantic roles & 50–950 ramp

primary

#1F5A8A

secondary

#BA7D4B

accent

#8B41E6

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1F5A8A

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

Preview Lab → · Contrast checker → · Palette generator →