#1F4E58#1F4E58

#1F4E58 is a dark, muted cyan. Relative luminance 0.064; OKLCH L 39.6% C 0.053 H 213.8°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E58
RGB	rgb(31, 78, 88)
HSL	hsl(191, 48%, 23%)
HSV	hsv(191, 65%, 35%)
CMYK	cmyk(64.8%, 11.4%, 0%, 65.5%)
CIE-LAB	lab(30.51, -12.49, -10.67)
CIE-LCH	lch(30.51, 16.43, 220.52°)
OKLab	oklab(39.6% -0.0442 -0.0296)
OKLCH	oklch(39.6% 0.053 213.8)
XYZ	xyz(5.0502, 6.4442, 10.2083)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E58 #58291F

analogous

#1F5845 #1F4E58 #1F3158

triadic

#1F4E58 #581F4E #4E581F

tetradic

#1F4E58 #451F58 #58291F #31581F

square

#1F4E58 #451F58 #58291F #31581F

split-complementary

#1F4E58 #581F31 #58451F

monochromatic

#081417 #0F262B #1F4E58 #2F7685 #3F9EB3

Accessibility & contrast

On white

9.17

#1F4E58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#1F4E58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E58

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E58	#FFFFFF	#000000	##FFFFFF
##1F4E58	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474B59

Deuteranopia (green-blind)

#3E4558

Tritanopia (blue-blind)

#005251

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f4e58;
/* rgb */ color: rgb(31, 78, 88);
/* oklch */ color: oklch(39.6% 0.053 213.8);

Tailwind

colors: {
  custom: {
    50: '#627f87',
    500: '#1f4e58',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e58;
$custom-light: #627f87;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e58",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 88
  },
  "hsl": {
    "h": 190.526,
    "s": 47.899,
    "l": 23.333
  },
  "oklch": {
    "l": 0.39602,
    "c": 0.05318,
    "h": 213.8
  },
  "luminance": 0.06445
}

Semantic roles & 50–950 ramp

primary

#1F4E58

secondary

#8D5246

accent

#6850D7

background

#F6F7F8

surface

#EBEEEF

border

#C6C9CA

text

#050A0B

muted

#7A7C7C

Preview Lab

Preview with #1F4E58

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

Preview Lab → · Contrast checker → · Palette generator →