#1F5B9A#1F5B9A

#1F5B9A is a mid, moderate cyan. Relative luminance 0.101; OKLCH L 46.6% C 0.119 H 252.8°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#1F5B9A
RGB	rgb(31, 91, 154)
HSL	hsl(211, 66%, 36%)
HSV	hsv(211, 80%, 60%)
CMYK	cmyk(79.9%, 40.9%, 0%, 39.6%)
CIE-LAB	lab(38.03, 4.22, -39.79)
CIE-LCH	lch(38.03, 40.01, 276.06°)
OKLab	oklab(46.65% -0.0352 -0.1137)
OKLCH	oklch(46.65% 0.119 252.8)
XYZ	xyz(10.1367, 10.1054, 31.9819)
Luminance	0.1011 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5B9A #9A5E1F

analogous

#1F999A #1F5B9A #211F9A

triadic

#1F5B9A #9A1F5B #5B9A1F

tetradic

#1F5B9A #9A1F99 #9A5E1F #1F9A21

square

#1F5B9A #9A1F99 #9A5E1F #1F9A21

split-complementary

#1F5B9A #9A211F #999A1F

monochromatic

#0A1F34 #153D67 #1F5B9A #2979CD #5698DD

Accessibility & contrast

On white

6.95

#1F5B9A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#1F5B9A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5B9A

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5B9A	#FFFFFF	#000000	##FFFFFF
##1F5B9A	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D609D

Deuteranopia (green-blind)

#285499

Tritanopia (blue-blind)

#006A73

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1f5b9a;
/* rgb */ color: rgb(31, 91, 154);
/* oklch */ color: oklch(46.6% 0.119 252.8);

Tailwind

colors: {
  custom: {
    50: '#6e88b8',
    500: '#1f5b9a',
    950: '#000000',
  },
}

SCSS

$custom: #1f5b9a;
$custom-light: #6e88b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5b9a",
  "rgb": {
    "r": 31,
    "g": 91,
    "b": 154
  },
  "hsl": {
    "h": 210.732,
    "s": 66.486,
    "l": 36.275
  },
  "oklch": {
    "l": 0.46645,
    "c": 0.11903,
    "h": 252.8
  },
  "luminance": 0.10107
}

Semantic roles & 50–950 ramp

primary

#1F5B9A

secondary

#C18C54

accent

#963EE9

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #1F5B9A

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

Preview Lab → · Contrast checker → · Palette generator →