#1F5B9C#1F5B9C

#1F5B9C is a mid, vivid cyan. Relative luminance 0.102; OKLCH L 46.8% C 0.122 H 253.4°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#1F5B9C
RGB	rgb(31, 91, 156)
HSL	hsl(211, 67%, 37%)
HSV	hsv(211, 80%, 61%)
CMYK	cmyk(80.1%, 41.7%, 0%, 38.8%)
CIE-LAB	lab(38.15, 5.01, -40.80)
CIE-LCH	lch(38.15, 41.11, 277.00°)
OKLab	oklab(46.78% -0.0347 -0.1167)
OKLCH	oklch(46.78% 0.122 253.4)
XYZ	xyz(10.3047, 10.1725, 32.8664)
Luminance	0.1017 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5B9C #9C601F

analogous

#1F9A9C #1F5B9C #221F9C

triadic

#1F5B9C #9C1F5B #5B9C1F

tetradic

#1F5B9C #9C1F9A #9C601F #1F9C22

square

#1F5B9C #9C1F9A #9C601F #1F9C22

split-complementary

#1F5B9C #9C221F #9A9C1F

monochromatic

#0B1F36 #153D69 #1F5B9C #2979CF #5898DE

Accessibility & contrast

On white

6.92

#1F5B9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#1F5B9C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5B9C

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5B9C	#FFFFFF	#000000	##FFFFFF
##1F5B9C	1.00	6.92	3.03	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B609F

Deuteranopia (green-blind)

#26559B

Tritanopia (blue-blind)

#006A74

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1f5b9c;
/* rgb */ color: rgb(31, 91, 156);
/* oklch */ color: oklch(46.8% 0.122 253.4);

Tailwind

colors: {
  custom: {
    50: '#6f88b9',
    500: '#1f5b9c',
    950: '#000000',
  },
}

SCSS

$custom: #1f5b9c;
$custom-light: #6f88b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5b9c",
  "rgb": {
    "r": 31,
    "g": 91,
    "b": 156
  },
  "hsl": {
    "h": 211.2,
    "s": 66.845,
    "l": 36.667
  },
  "oklch": {
    "l": 0.46777,
    "c": 0.12172,
    "h": 253.4
  },
  "luminance": 0.10174
}

Semantic roles & 50–950 ramp

primary

#1F5B9C

secondary

#C18E55

accent

#973EEA

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #1F5B9C

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

Preview Lab → · Contrast checker → · Palette generator →