#1F4D64#1F4D64

#1F4D64 is a dark, moderate cyan. Relative luminance 0.065; OKLCH L 39.9% C 0.063 H 233.2°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#1F4D64
RGB	rgb(31, 77, 100)
HSL	hsl(200, 53%, 26%)
HSV	hsv(200, 69%, 39%)
CMYK	cmyk(69%, 23%, 0%, 60.8%)
CIE-LAB	lab(30.68, -7.62, -18.05)
CIE-LCH	lch(30.68, 19.59, 247.11°)
OKLab	oklab(39.92% -0.0378 -0.0506)
OKLCH	oklch(39.92% 0.063 233.2)
XYZ	xyz(5.5183, 6.5186, 13.0215)
Luminance	0.0652 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4D64 #64361F

analogous

#1F6458 #1F4D64 #1F2A64

triadic

#1F4D64 #641F4D #4D641F

tetradic

#1F4D64 #581F64 #64361F #2A641F

square

#1F4D64 #581F64 #64361F #2A641F

split-complementary

#1F4D64 #641F2A #64581F

monochromatic

#071217 #112935 #1F4D64 #2D7193 #3C95C1

Accessibility & contrast

On white

9.12

#1F4D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1F4D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4D64

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4D64	#FFFFFF	#000000	##FFFFFF
##1F4D64	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424C65

Deuteranopia (green-blind)

#384564

Tritanopia (blue-blind)

#005355

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f4d64;
/* rgb */ color: rgb(31, 77, 100);
/* oklch */ color: oklch(39.9% 0.063 233.2);

Tailwind

colors: {
  custom: {
    50: '#637e90',
    500: '#1f4d64',
    950: '#000000',
  },
}

SCSS

$custom: #1f4d64;
$custom-light: #637e90;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4d64",
  "rgb": {
    "r": 31,
    "g": 77,
    "b": 100
  },
  "hsl": {
    "h": 200,
    "s": 52.672,
    "l": 25.686
  },
  "oklch": {
    "l": 0.39915,
    "c": 0.06312,
    "h": 233.2
  },
  "luminance": 0.06519
}

Semantic roles & 50–950 ramp

primary

#1F4D64

secondary

#986246

accent

#7C4CDC

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#060A0C

muted

#7A7C7D

Preview Lab

Preview with #1F4D64

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

Preview Lab → · Contrast checker → · Palette generator →