#1F4B82#1F4B82

#1F4B82 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 41.2% C 0.104 H 255.5°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#1F4B82
RGB	rgb(31, 75, 130)
HSL	hsl(213, 61%, 32%)
HSV	hsv(213, 76%, 51%)
CMYK	cmyk(76.2%, 42.3%, 0%, 49%)
CIE-LAB	lab(31.66, 5.25, -35.33)
CIE-LCH	lch(31.66, 35.72, 278.45°)
OKLab	oklab(41.21% -0.026 -0.1009)
OKLCH	oklch(41.21% 0.104 255.5)
XYZ	xyz(7.1089, 6.9344, 22.0786)
Luminance	0.0693 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4B82 #82561F

analogous

#1F7D82 #1F4B82 #241F82

triadic

#1F4B82 #821F4B #4B821F

tetradic

#1F4B82 #821F7D #82561F #1F8224

square

#1F4B82 #821F7D #82561F #1F8224

split-complementary

#1F4B82 #82241F #7D821F

monochromatic

#07121F #132E51 #1F4B82 #2B68B3 #4886D3

Accessibility & contrast

On white

8.80

#1F4B82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1F4B82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4B82

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4B82	#FFFFFF	#000000	##FFFFFF
##1F4B82	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314F84

Deuteranopia (green-blind)

#204681

Tritanopia (blue-blind)

#005860

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f4b82;
/* rgb */ color: rgb(31, 75, 130);
/* oklch */ color: oklch(41.2% 0.104 255.5);

Tailwind

colors: {
  custom: {
    50: '#697ca7',
    500: '#1f4b82',
    950: '#000000',
  },
}

SCSS

$custom: #1f4b82;
$custom-light: #697ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4b82",
  "rgb": {
    "r": 31,
    "g": 75,
    "b": 130
  },
  "hsl": {
    "h": 213.333,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.41209,
    "c": 0.10422,
    "h": 255.5
  },
  "luminance": 0.06935
}

Semantic roles & 50–950 ramp

primary

#1F4B82

secondary

#B58448

accent

#9D43E5

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1F4B82

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

Preview Lab → · Contrast checker → · Palette generator →