#1F5FA9#1F5FA9

#1F5FA9 is a mid, vivid cyan. Relative luminance 0.113; OKLCH L 48.6% C 0.135 H 254.8°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#1F5FA9
RGB	rgb(31, 95, 169)
HSL	hsl(212, 69%, 39%)
HSV	hsv(212, 82%, 66%)
CMYK	cmyk(81.7%, 43.8%, 0%, 33.7%)
CIE-LAB	lab(40.15, 7.54, -45.35)
CIE-LCH	lch(40.15, 45.97, 279.44°)
OKLab	oklab(48.59% -0.0352 -0.13)
OKLCH	oklch(48.59% 0.135 254.8)
XYZ	xyz(11.8160, 11.3389, 39.0943)
Luminance	0.1134 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5FA9 #A9691F

analogous

#1FA4A9 #1F5FA9 #241FA9

triadic

#1F5FA9 #A91F5F #5FA91F

tetradic

#1F5FA9 #A91FA4 #A9691F #1FA924

square

#1F5FA9 #A91FA4 #A9691F #1FA924

split-complementary

#1F5FA9 #A9241F #A4A91F

monochromatic

#0C2542 #164275 #1F5FA9 #2D7CD8 #609DE2

Accessibility & contrast

On white

6.43

#1F5FA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#1F5FA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5FA9

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5FA9	#FFFFFF	#000000	##FFFFFF
##1F5FA9	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3965AC

Deuteranopia (green-blind)

#1E59A8

Tritanopia (blue-blind)

#00717B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #1f5fa9;
/* rgb */ color: rgb(31, 95, 169);
/* oklch */ color: oklch(48.6% 0.135 254.8);

Tailwind

colors: {
  custom: {
    50: '#728bc3',
    500: '#1f5fa9',
    950: '#000000',
  },
}

SCSS

$custom: #1f5fa9;
$custom-light: #728bc3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5fa9",
  "rgb": {
    "r": 31,
    "g": 95,
    "b": 169
  },
  "hsl": {
    "h": 212.174,
    "s": 69,
    "l": 39.216
  },
  "oklch": {
    "l": 0.48585,
    "c": 0.13465,
    "h": 254.8
  },
  "luminance": 0.1134
}

Semantic roles & 50–950 ramp

primary

#1F5FA9

secondary

#C7965D

accent

#9A3CEC

background

#F7F8FC

surface

#EDF0F8

border

#C8CBD1

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #1F5FA9

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

Preview Lab → · Contrast checker → · Palette generator →