#1F5B9E#1F5B9E

#1F5B9E is a mid, vivid cyan. Relative luminance 0.102; OKLCH L 46.9% C 0.124 H 254.0°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#1F5B9E
RGB	rgb(31, 91, 158)
HSL	hsl(212, 67%, 37%)
HSV	hsv(212, 80%, 62%)
CMYK	cmyk(80.4%, 42.4%, 0%, 38%)
CIE-LAB	lab(38.27, 5.80, -41.80)
CIE-LCH	lch(38.27, 42.20, 277.90°)
OKLab	oklab(46.91% -0.0342 -0.1196)
OKLCH	oklch(46.91% 0.124 254)
XYZ	xyz(10.4754, 10.2408, 33.7657)
Luminance	0.1024 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5B9E #9E621F

analogous

#1F9A9E #1F5B9E #231F9E

triadic

#1F5B9E #9E1F5B #5B9E1F

tetradic

#1F5B9E #9E1F9A #9E621F #1F9E23

square

#1F5B9E #9E1F9A #9E621F #1F9E23

split-complementary

#1F5B9E #9E231F #9A9E1F

monochromatic

#0B2038 #153E6B #1F5B9E #2978D1 #5998DE

Accessibility & contrast

On white

6.89

#1F5B9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#1F5B9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5B9E

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5B9E	#FFFFFF	#000000	##FFFFFF
##1F5B9E	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A60A1

Deuteranopia (green-blind)

#23559D

Tritanopia (blue-blind)

#006B75

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1f5b9e;
/* rgb */ color: rgb(31, 91, 158);
/* oklch */ color: oklch(46.9% 0.124 254.0);

Tailwind

colors: {
  custom: {
    50: '#6f88bb',
    500: '#1f5b9e',
    950: '#000000',
  },
}

SCSS

$custom: #1f5b9e;
$custom-light: #6f88bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5b9e",
  "rgb": {
    "r": 31,
    "g": 91,
    "b": 158
  },
  "hsl": {
    "h": 211.654,
    "s": 67.196,
    "l": 37.059
  },
  "oklch": {
    "l": 0.4691,
    "c": 0.12443,
    "h": 254
  },
  "luminance": 0.10242
}

Semantic roles & 50–950 ramp

primary

#1F5B9E

secondary

#C28F56

accent

#993EEA

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1F5B9E

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

Preview Lab → · Contrast checker → · Palette generator →