#1F4E5B#1F4E5B

#1F4E5B is a dark, muted cyan. Relative luminance 0.065; OKLCH L 39.7% C 0.055 H 218.9°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E5B
RGB	rgb(31, 78, 91)
HSL	hsl(193, 49%, 24%)
HSV	hsv(193, 66%, 36%)
CMYK	cmyk(65.9%, 14.3%, 0%, 64.3%)
CIE-LAB	lab(30.63, -11.45, -12.40)
CIE-LCH	lch(30.63, 16.88, 227.29°)
OKLab	oklab(39.74% -0.0428 -0.0345)
OKLCH	oklch(39.74% 0.055 218.9)
XYZ	xyz(5.1770, 6.4949, 10.8763)
Luminance	0.0649 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E5B #5B2C1F

analogous

#1F5B4A #1F4E5B #1F305B

triadic

#1F4E5B #5B1F4E #4E5B1F

tetradic

#1F4E5B #4A1F5B #5B2C1F #305B1F

square

#1F4E5B #4A1F5B #5B2C1F #305B1F

split-complementary

#1F4E5B #5B1F30 #5B4A1F

monochromatic

#081417 #0F272D #1F4E5B #2F7589 #3E9CB6

Accessibility & contrast

On white

9.13

#1F4E5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1F4E5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E5B

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E5B	#FFFFFF	#000000	##FFFFFF
##1F4E5B	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464C5C

Deuteranopia (green-blind)

#3D455B

Tritanopia (blue-blind)

#005252

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f4e5b;
/* rgb */ color: rgb(31, 78, 91);
/* oklch */ color: oklch(39.7% 0.055 218.9);

Tailwind

colors: {
  custom: {
    50: '#627f89',
    500: '#1f4e5b',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e5b;
$custom-light: #627f89;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e5b",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 91
  },
  "hsl": {
    "h": 193,
    "s": 49.18,
    "l": 23.922
  },
  "oklch": {
    "l": 0.3974,
    "c": 0.05498,
    "h": 218.9
  },
  "luminance": 0.06495
}

Semantic roles & 50–950 ramp

primary

#1F4E5B

secondary

#905646

accent

#6D4FD9

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#050A0B

muted

#7A7C7C

Preview Lab

Preview with #1F4E5B

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

Preview Lab → · Contrast checker → · Palette generator →