#1F5399#1F5399

#1F5399 is a dark, vivid cyan. Relative luminance 0.088; OKLCH L 44.7% C 0.127 H 257.1°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#1F5399
RGB	rgb(31, 83, 153)
HSL	hsl(214, 66%, 36%)
HSV	hsv(214, 80%, 60%)
CMYK	cmyk(79.7%, 45.8%, 0%, 40%)
CIE-LAB	lab(35.55, 9.07, -43.16)
CIE-LCH	lch(35.55, 44.10, 281.87°)
OKLab	oklab(44.7% -0.0284 -0.1238)
OKLCH	oklch(44.7% 0.127 257.1)
XYZ	xyz(9.4060, 8.7766, 31.3291)
Luminance	0.0878 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5399 #99651F

analogous

#1F9099 #1F5399 #281F99

triadic

#1F5399 #991F53 #53991F

tetradic

#1F5399 #991F90 #99651F #1F9928

square

#1F5399 #991F90 #99651F #1F9928

split-complementary

#1F5399 #99281F #90991F

monochromatic

#0A1C33 #153766 #1F5399 #296FCC #568FDD

Accessibility & contrast

On white

7.62

#1F5399 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#1F5399 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5399

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5399	#FFFFFF	#000000	##FFFFFF
##1F5399	1.00	7.62	2.76	7.62
#FFFFFF	7.62	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5A9C

Deuteranopia (green-blind)

#144E98

Tritanopia (blue-blind)

#00646E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1f5399;
/* rgb */ color: rgb(31, 83, 153);
/* oklch */ color: oklch(44.7% 0.127 257.1);

Tailwind

colors: {
  custom: {
    50: '#6e82b7',
    500: '#1f5399',
    950: '#000000',
  },
}

SCSS

$custom: #1f5399;
$custom-light: #6e82b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5399",
  "rgb": {
    "r": 31,
    "g": 83,
    "b": 153
  },
  "hsl": {
    "h": 214.426,
    "s": 66.304,
    "l": 36.078
  },
  "oklch": {
    "l": 0.44698,
    "c": 0.12697,
    "h": 257.1
  },
  "luminance": 0.08778
}

Semantic roles & 50–950 ramp

primary

#1F5399

secondary

#C09254

accent

#A03FE9

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1F5399

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

Preview Lab → · Contrast checker → · Palette generator →