#1F5389#1F5389

#1F5389 is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.6% C 0.105 H 252.2°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#1F5389
RGB	rgb(31, 83, 137)
HSL	hsl(211, 63%, 33%)
HSV	hsv(211, 77%, 54%)
CMYK	cmyk(77.4%, 39.4%, 0%, 46.3%)
CIE-LAB	lab(34.57, 2.73, -35.01)
CIE-LCH	lch(34.57, 35.11, 274.45°)
OKLab	oklab(43.61% -0.032 -0.0998)
OKLCH	oklch(43.61% 0.105 252.2)
XYZ	xyz(8.1720, 8.2830, 24.8302)
Luminance	0.0828 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5389 #89551F

analogous

#1F8889 #1F5389 #201F89

triadic

#1F5389 #891F53 #53891F

tetradic

#1F5389 #891F88 #89551F #1F8920

square

#1F5389 #891F88 #89551F #1F8920

split-complementary

#1F5389 #89201F #88891F

monochromatic

#081725 #143557 #1F5389 #2A71BB #4C90D6

Accessibility & contrast

On white

7.90

#1F5389 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#1F5389 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5389

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5389	#FFFFFF	#000000	##FFFFFF
##1F5389	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A578B

Deuteranopia (green-blind)

#294D88

Tritanopia (blue-blind)

#006067

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1f5389;
/* rgb */ color: rgb(31, 83, 137);
/* oklch */ color: oklch(43.6% 0.105 252.2);

Tailwind

colors: {
  custom: {
    50: '#6b83ac',
    500: '#1f5389',
    950: '#000000',
  },
}

SCSS

$custom: #1f5389;
$custom-light: #6b83ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5389",
  "rgb": {
    "r": 31,
    "g": 83,
    "b": 137
  },
  "hsl": {
    "h": 210.566,
    "s": 63.095,
    "l": 32.941
  },
  "oklch": {
    "l": 0.43613,
    "c": 0.10484,
    "h": 252.2
  },
  "luminance": 0.08284
}

Semantic roles & 50–950 ramp

primary

#1F5389

secondary

#B9834B

accent

#9542E6

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1F5389

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

Preview Lab → · Contrast checker → · Palette generator →