#1F4B60#1F4B60

#1F4B60 is a dark, muted cyan. Relative luminance 0.062; OKLCH L 39.2% C 0.060 H 231.8°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#1F4B60
RGB	rgb(31, 75, 96)
HSL	hsl(199, 51%, 25%)
HSV	hsv(199, 68%, 38%)
CMYK	cmyk(67.7%, 21.9%, 0%, 62.4%)
CIE-LAB	lab(29.83, -7.84, -16.82)
CIE-LCH	lch(29.83, 18.56, 245.01°)
OKLab	oklab(39.17% -0.037 -0.0471)
OKLCH	oklch(39.17% 0.06 231.8)
XYZ	xyz(5.1916, 6.1675, 11.9809)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4B60 #60341F

analogous

#1F6055 #1F4B60 #1F2A60

triadic

#1F4B60 #601F4B #4B601F

tetradic

#1F4B60 #551F60 #60341F #2A601F

square

#1F4B60 #551F60 #60341F #2A601F

split-complementary

#1F4B60 #601F2A #60551F

monochromatic

#071217 #102732 #1F4B60 #2E6F8E #3D93BD

Accessibility & contrast

On white

9.40

#1F4B60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#1F4B60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4B60

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4B60	#FFFFFF	#000000	##FFFFFF
##1F4B60	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#414A61

Deuteranopia (green-blind)

#384360

Tritanopia (blue-blind)

#005152

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1f4b60;
/* rgb */ color: rgb(31, 75, 96);
/* oklch */ color: oklch(39.2% 0.060 231.8);

Tailwind

colors: {
  custom: {
    50: '#627d8d',
    500: '#1f4b60',
    950: '#000000',
  },
}

SCSS

$custom: #1f4b60;
$custom-light: #627d8d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4b60",
  "rgb": {
    "r": 31,
    "g": 75,
    "b": 96
  },
  "hsl": {
    "h": 199.385,
    "s": 51.181,
    "l": 24.902
  },
  "oklch": {
    "l": 0.39175,
    "c": 0.05986,
    "h": 231.8
  },
  "luminance": 0.06168
}

Semantic roles & 50–950 ramp

primary

#1F4B60

secondary

#956046

accent

#7B4DDB

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#06090C

muted

#7A7B7D

Preview Lab

Preview with #1F4B60

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

Preview Lab → · Contrast checker → · Palette generator →