#1F4F82#1F4F82

#1F4F82 is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.2% C 0.100 H 252.5°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#1F4F82
RGB	rgb(31, 79, 130)
HSL	hsl(211, 61%, 32%)
HSV	hsv(211, 76%, 51%)
CMYK	cmyk(76.2%, 39.2%, 0%, 49%)
CIE-LAB	lab(32.91, 2.59, -33.34)
CIE-LCH	lch(32.91, 33.44, 274.44°)
OKLab	oklab(42.18% -0.03 -0.095)
OKLCH	oklch(42.18% 0.1 252.5)
XYZ	xyz(7.3888, 7.4941, 22.1719)
Luminance	0.0750 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4F82 #82521F

analogous

#1F8182 #1F4F82 #201F82

triadic

#1F4F82 #821F4F #4F821F

tetradic

#1F4F82 #821F81 #82521F #1F8220

square

#1F4F82 #821F81 #82521F #1F8220

split-complementary

#1F4F82 #82201F #81821F

monochromatic

#07131F #133151 #1F4F82 #2B6DB3 #488CD3

Accessibility & contrast

On white

8.40

#1F4F82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1F4F82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4F82

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4F82	#FFFFFF	#000000	##FFFFFF
##1F4F82	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375284

Deuteranopia (green-blind)

#284981

Tritanopia (blue-blind)

#005B62

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f4f82;
/* rgb */ color: rgb(31, 79, 130);
/* oklch */ color: oklch(42.2% 0.100 252.5);

Tailwind

colors: {
  custom: {
    50: '#697fa6',
    500: '#1f4f82',
    950: '#000000',
  },
}

SCSS

$custom: #1f4f82;
$custom-light: #697fa6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4f82",
  "rgb": {
    "r": 31,
    "g": 79,
    "b": 130
  },
  "hsl": {
    "h": 210.909,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.42183,
    "c": 0.09963,
    "h": 252.5
  },
  "luminance": 0.07495
}

Semantic roles & 50–950 ramp

primary

#1F4F82

secondary

#B58048

accent

#9643E5

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1F4F82

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

Preview Lab → · Contrast checker → · Palette generator →