#1F5799#1F5799

#1F5799 is a mid, vivid cyan. Relative luminance 0.094; OKLCH L 45.6% C 0.122 H 254.9°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#1F5799
RGB	rgb(31, 87, 153)
HSL	hsl(212, 66%, 36%)
HSV	hsv(212, 80%, 60%)
CMYK	cmyk(79.7%, 43.1%, 0%, 40%)
CIE-LAB	lab(36.76, 6.43, -41.23)
CIE-LCH	lch(36.76, 41.72, 278.87°)
OKLab	oklab(45.63% -0.0319 -0.118)
OKLCH	oklch(45.63% 0.122 254.9)
XYZ	xyz(9.7209, 9.4065, 31.4341)
Luminance	0.0941 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5799 #99611F

analogous

#1F9499 #1F5799 #241F99

triadic

#1F5799 #991F57 #57991F

tetradic

#1F5799 #991F94 #99611F #1F9924

square

#1F5799 #991F94 #99611F #1F9924

split-complementary

#1F5799 #99241F #94991F

monochromatic

#0A1D33 #153A66 #1F5799 #2974CC #5694DD

Accessibility & contrast

On white

7.29

#1F5799 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#1F5799 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5799

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5799	#FFFFFF	#000000	##FFFFFF
##1F5799	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365C9C

Deuteranopia (green-blind)

#205198

Tritanopia (blue-blind)

#006770

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1f5799;
/* rgb */ color: rgb(31, 87, 153);
/* oklch */ color: oklch(45.6% 0.122 254.9);

Tailwind

colors: {
  custom: {
    50: '#6e85b7',
    500: '#1f5799',
    950: '#000000',
  },
}

SCSS

$custom: #1f5799;
$custom-light: #6e85b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5799",
  "rgb": {
    "r": 31,
    "g": 87,
    "b": 153
  },
  "hsl": {
    "h": 212.459,
    "s": 66.304,
    "l": 36.078
  },
  "oklch": {
    "l": 0.45632,
    "c": 0.12223,
    "h": 254.9
  },
  "luminance": 0.09408
}

Semantic roles & 50–950 ramp

primary

#1F5799

secondary

#C08E54

accent

#9B3FE9

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #1F5799

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

Preview Lab → · Contrast checker → · Palette generator →