#1F4B83#1F4B83

#1F4B83 is a dark, moderate cyan. Relative luminance 0.070; OKLCH L 41.3% C 0.106 H 255.9°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#1F4B83
RGB	rgb(31, 75, 131)
HSL	hsl(214, 62%, 32%)
HSV	hsv(214, 76%, 51%)
CMYK	cmyk(76.3%, 42.7%, 0%, 48.6%)
CIE-LAB	lab(31.72, 5.64, -35.85)
CIE-LCH	lch(31.72, 36.29, 278.95°)
OKLab	oklab(41.28% -0.0258 -0.1024)
OKLCH	oklch(41.28% 0.106 255.9)
XYZ	xyz(7.1764, 6.9614, 22.4338)
Luminance	0.0696 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4B83 #83571F

analogous

#1F7D83 #1F4B83 #251F83

triadic

#1F4B83 #831F4B #4B831F

tetradic

#1F4B83 #831F7D #83571F #1F8325

square

#1F4B83 #831F7D #83571F #1F8325

split-complementary

#1F4B83 #83251F #7D831F

monochromatic

#081220 #132F52 #1F4B83 #2B67B4 #4986D4

Accessibility & contrast

On white

8.78

#1F4B83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1F4B83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4B83

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4B83	#FFFFFF	#000000	##FFFFFF
##1F4B83	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305085

Deuteranopia (green-blind)

#1F4682

Tritanopia (blue-blind)

#005860

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1f4b83;
/* rgb */ color: rgb(31, 75, 131);
/* oklch */ color: oklch(41.3% 0.106 255.9);

Tailwind

colors: {
  custom: {
    50: '#697ca7',
    500: '#1f4b83',
    950: '#000000',
  },
}

SCSS

$custom: #1f4b83;
$custom-light: #697ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4b83",
  "rgb": {
    "r": 31,
    "g": 75,
    "b": 131
  },
  "hsl": {
    "h": 213.6,
    "s": 61.728,
    "l": 31.765
  },
  "oklch": {
    "l": 0.41277,
    "c": 0.10564,
    "h": 255.9
  },
  "luminance": 0.06962
}

Semantic roles & 50–950 ramp

primary

#1F4B83

secondary

#B68548

accent

#9E43E5

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1F4B83

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

Preview Lab → · Contrast checker → · Palette generator →