#1F5899#1F5899

#1F5899 is a mid, vivid cyan. Relative luminance 0.096; OKLCH L 45.9% C 0.121 H 254.3°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#1F5899
RGB	rgb(31, 88, 153)
HSL	hsl(212, 66%, 36%)
HSV	hsv(212, 80%, 60%)
CMYK	cmyk(79.7%, 42.5%, 0%, 40%)
CIE-LAB	lab(37.06, 5.78, -40.74)
CIE-LCH	lch(37.06, 41.15, 278.07°)
OKLab	oklab(45.87% -0.0327 -0.1166)
OKLCH	oklch(45.87% 0.121 254.3)
XYZ	xyz(9.8024, 9.5695, 31.4613)
Luminance	0.0957 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5899 #99601F

analogous

#1F9599 #1F5899 #231F99

triadic

#1F5899 #991F58 #58991F

tetradic

#1F5899 #991F95 #99601F #1F9923

square

#1F5899 #991F95 #99601F #1F9923

split-complementary

#1F5899 #99231F #95991F

monochromatic

#0A1D33 #153B66 #1F5899 #2975CC #5695DD

Accessibility & contrast

On white

7.21

#1F5899 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#1F5899 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5899

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5899	#FFFFFF	#000000	##FFFFFF
##1F5899	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#385D9C

Deuteranopia (green-blind)

#235298

Tritanopia (blue-blind)

#006771

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1f5899;
/* rgb */ color: rgb(31, 88, 153);
/* oklch */ color: oklch(45.9% 0.121 254.3);

Tailwind

colors: {
  custom: {
    50: '#6e86b7',
    500: '#1f5899',
    950: '#000000',
  },
}

SCSS

$custom: #1f5899;
$custom-light: #6e86b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5899",
  "rgb": {
    "r": 31,
    "g": 88,
    "b": 153
  },
  "hsl": {
    "h": 211.967,
    "s": 66.304,
    "l": 36.078
  },
  "oklch": {
    "l": 0.45868,
    "c": 0.12107,
    "h": 254.3
  },
  "luminance": 0.09571
}

Semantic roles & 50–950 ramp

primary

#1F5899

secondary

#C08D54

accent

#993FE9

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #1F5899

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

Preview Lab → · Contrast checker → · Palette generator →