#1F4B80#1F4B80

#1F4B80 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 41.1% C 0.101 H 254.8°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#1F4B80
RGB	rgb(31, 75, 128)
HSL	hsl(213, 61%, 31%)
HSV	hsv(213, 76%, 50%)
CMYK	cmyk(75.8%, 41.4%, 0%, 49.8%)
CIE-LAB	lab(31.53, 4.45, -34.29)
CIE-LCH	lch(31.53, 34.57, 277.40°)
OKLab	oklab(41.08% -0.0265 -0.0979)
OKLCH	oklch(41.08% 0.101 254.8)
XYZ	xyz(6.9760, 6.8812, 21.3784)
Luminance	0.0688 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4B80 #80541F

analogous

#1F7B80 #1F4B80 #241F80

triadic

#1F4B80 #801F4B #4B801F

tetradic

#1F4B80 #801F7B #80541F #1F8024

square

#1F4B80 #801F7B #80541F #1F8024

split-complementary

#1F4B80 #80241F #7B801F

monochromatic

#07111D #132E4F #1F4B80 #2B68B1 #4786D2

Accessibility & contrast

On white

8.84

#1F4B80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#1F4B80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4B80

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4B80	#FFFFFF	#000000	##FFFFFF
##1F4B80	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324F82

Deuteranopia (green-blind)

#22467F

Tritanopia (blue-blind)

#00575F

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1f4b80;
/* rgb */ color: rgb(31, 75, 128);
/* oklch */ color: oklch(41.1% 0.101 254.8);

Tailwind

colors: {
  custom: {
    50: '#697ca5',
    500: '#1f4b80',
    950: '#000000',
  },
}

SCSS

$custom: #1f4b80;
$custom-light: #697ca5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4b80",
  "rgb": {
    "r": 31,
    "g": 75,
    "b": 128
  },
  "hsl": {
    "h": 212.784,
    "s": 61.006,
    "l": 31.176
  },
  "oklch": {
    "l": 0.41075,
    "c": 0.10138,
    "h": 254.8
  },
  "luminance": 0.06882
}

Semantic roles & 50–950 ramp

primary

#1F4B80

secondary

#B38248

accent

#9B44E4

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1F4B80

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

Preview Lab → · Contrast checker → · Palette generator →