#1D4B68#1D4B68

#1D4B68 is a dark, moderate cyan. Relative luminance 0.063; OKLCH L 39.5% C 0.070 H 239.7°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#1D4B68
RGB	rgb(29, 75, 104)
HSL	hsl(203, 56%, 26%)
HSV	hsv(203, 72%, 41%)
CMYK	cmyk(72.1%, 27.9%, 0%, 59.2%)
CIE-LAB	lab(30.14, -5.24, -21.44)
CIE-LCH	lch(30.14, 22.07, 256.28°)
OKLab	oklab(39.52% -0.0353 -0.0604)
OKLCH	oklch(39.52% 0.07 239.7)
XYZ	xyz(5.5205, 6.2922, 14.0176)
Luminance	0.0629 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4B68 #683A1D

analogous

#1D685F #1D4B68 #1D2568

triadic

#1D4B68 #681D4B #4B681D

tetradic

#1D4B68 #5F1D68 #683A1D #25681D

square

#1D4B68 #5F1D68 #683A1D #25681D

split-complementary

#1D4B68 #681D25 #685F1D

monochromatic

#071118 #102838 #1D4B68 #2A6E98 #3890C7

Accessibility & contrast

On white

9.30

#1D4B68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1D4B68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4B68

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4B68	#FFFFFF	#000000	##FFFFFF
##1D4B68	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E4B69

Deuteranopia (green-blind)

#334467

Tritanopia (blue-blind)

#005255

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1d4b68;
/* rgb */ color: rgb(29, 75, 104);
/* oklch */ color: oklch(39.5% 0.070 239.7);

Tailwind

colors: {
  custom: {
    50: '#637d93',
    500: '#1d4b68',
    950: '#000000',
  },
}

SCSS

$custom: #1d4b68;
$custom-light: #637d93;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4b68",
  "rgb": {
    "r": 29,
    "g": 75,
    "b": 104
  },
  "hsl": {
    "h": 203.2,
    "s": 56.391,
    "l": 26.078
  },
  "oklch": {
    "l": 0.39524,
    "c": 0.06996,
    "h": 239.7
  },
  "luminance": 0.06293
}

Semantic roles & 50–950 ramp

primary

#1D4B68

secondary

#9D6644

accent

#8348E0

background

#F6F7F9

surface

#EBEEF1

border

#C6C9CB

text

#06090D

muted

#7A7B7E

Preview Lab

Preview with #1D4B68

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

Preview Lab → · Contrast checker → · Palette generator →