#1F5489#1F5489

#1F5489 is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.9% C 0.104 H 251.4°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#1F5489
RGB	rgb(31, 84, 137)
HSL	hsl(210, 63%, 33%)
HSV	hsv(210, 77%, 54%)
CMYK	cmyk(77.4%, 38.7%, 0%, 46.3%)
CIE-LAB	lab(34.88, 2.08, -34.51)
CIE-LCH	lch(34.88, 34.58, 273.44°)
OKLab	oklab(43.86% -0.033 -0.0984)
OKLCH	oklch(43.86% 0.104 251.4)
XYZ	xyz(8.2491, 8.4371, 24.8558)
Luminance	0.0844 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5489 #89541F

analogous

#1F8989 #1F5489 #1F1F89

triadic

#1F5489 #891F54 #54891F

tetradic

#1F5489 #891F89 #89541F #1F891F

square

#1F5489 #891F89 #89541F #1F891F

split-complementary

#1F5489 #891F1F #89891F

monochromatic

#081725 #143557 #1F5489 #2A73BB #4C91D6

Accessibility & contrast

On white

7.81

#1F5489 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#1F5489 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5489

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5489	#FFFFFF	#000000	##FFFFFF
##1F5489	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B578B

Deuteranopia (green-blind)

#2B4E88

Tritanopia (blue-blind)

#006168

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1f5489;
/* rgb */ color: rgb(31, 84, 137);
/* oklch */ color: oklch(43.9% 0.104 251.4);

Tailwind

colors: {
  custom: {
    50: '#6b83ac',
    500: '#1f5489',
    950: '#000000',
  },
}

SCSS

$custom: #1f5489;
$custom-light: #6b83ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5489",
  "rgb": {
    "r": 31,
    "g": 84,
    "b": 137
  },
  "hsl": {
    "h": 210,
    "s": 63.095,
    "l": 32.941
  },
  "oklch": {
    "l": 0.43857,
    "c": 0.10374,
    "h": 251.4
  },
  "luminance": 0.08438
}

Semantic roles & 50–950 ramp

primary

#1F5489

secondary

#B9824B

accent

#9442E6

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1F5489

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

Preview Lab → · Contrast checker → · Palette generator →