#1F4E61#1F4E61

#1F4E61 is a dark, muted cyan. Relative luminance 0.066; OKLCH L 40.0% C 0.060 H 227.7°. Best body text is #FFFFFF at 9.05:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E61
RGB	rgb(31, 78, 97)
HSL	hsl(197, 52%, 25%)
HSV	hsv(197, 68%, 38%)
CMYK	cmyk(68%, 19.6%, 0%, 62%)
CIE-LAB	lab(30.88, -9.33, -15.83)
CIE-LCH	lch(30.88, 18.37, 239.50°)
OKLab	oklab(40.03% -0.0402 -0.0442)
OKLCH	oklch(40.03% 0.06 227.7)
XYZ	xyz(5.4463, 6.6026, 12.2943)
Luminance	0.0660 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E61 #61321F

analogous

#1F6153 #1F4E61 #1F2D61

triadic

#1F4E61 #611F4E #4E611F

tetradic

#1F4E61 #531F61 #61321F #2D611F

square

#1F4E61 #531F61 #61321F #2D611F

split-complementary

#1F4E61 #611F2D #61531F

monochromatic

#071317 #102933 #1F4E61 #2E738F #3D99BE

Accessibility & contrast

On white

9.05

#1F4E61 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#1F4E61 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E61

9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E61	#FFFFFF	#000000	##FFFFFF
##1F4E61	1.00	9.05	2.32	9.05
#FFFFFF	9.05	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#444D62

Deuteranopia (green-blind)

#3B4661

Tritanopia (blue-blind)

#005354

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1f4e61;
/* rgb */ color: rgb(31, 78, 97);
/* oklch */ color: oklch(40.0% 0.060 227.7);

Tailwind

colors: {
  custom: {
    50: '#637f8e',
    500: '#1f4e61',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e61;
$custom-light: #637f8e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e61",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 97
  },
  "hsl": {
    "h": 197.273,
    "s": 51.563,
    "l": 25.098
  },
  "oklch": {
    "l": 0.4003,
    "c": 0.05977,
    "h": 227.7
  },
  "luminance": 0.06603
}

Semantic roles & 50–950 ramp

primary

#1F4E61

secondary

#965D46

accent

#764DDB

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#060A0C

muted

#7A7C7D

Preview Lab

Preview with #1F4E61

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

Preview Lab → · Contrast checker → · Palette generator →