#1C4B68#1C4B68

#1C4B68 is a dark, moderate cyan. Relative luminance 0.063; OKLCH L 39.5% C 0.070 H 239.3°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#1C4B68
RGB	rgb(28, 75, 104)
HSL	hsl(203, 58%, 26%)
HSV	hsv(203, 73%, 41%)
CMYK	cmyk(73.1%, 27.9%, 0%, 59.2%)
CIE-LAB	lab(30.10, -5.41, -21.50)
CIE-LCH	lch(30.10, 22.17, 255.87°)
OKLab	oklab(39.49% -0.036 -0.0606)
OKLCH	oklch(39.49% 0.07 239.3)
XYZ	xyz(5.4927, 6.2779, 14.0163)
Luminance	0.0628 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4B68 #68391C

analogous

#1C685F #1C4B68 #1C2568

triadic

#1C4B68 #681C4B #4B681C

tetradic

#1C4B68 #5F1C68 #68391C #25681C

square

#1C4B68 #5F1C68 #68391C #25681C

split-complementary

#1C4B68 #681C25 #685F1C

monochromatic

#061118 #0F2838 #1C4B68 #296E98 #3691C8

Accessibility & contrast

On white

9.31

#1C4B68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1C4B68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4B68

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4B68	#FFFFFF	#000000	##FFFFFF
##1C4B68	1.00	9.31	2.26	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.31	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: #1c4b68;
/* rgb */ color: rgb(28, 75, 104);
/* oklch */ color: oklch(39.5% 0.070 239.3);

Tailwind

colors: {
  custom: {
    50: '#637d93',
    500: '#1c4b68',
    950: '#000000',
  },
}

SCSS

$custom: #1c4b68;
$custom-light: #637d93;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4b68",
  "rgb": {
    "r": 28,
    "g": 75,
    "b": 104
  },
  "hsl": {
    "h": 202.895,
    "s": 57.576,
    "l": 25.882
  },
  "oklch": {
    "l": 0.39486,
    "c": 0.07046,
    "h": 239.3
  },
  "luminance": 0.06279
}

Semantic roles & 50–950 ramp

primary

#1C4B68

secondary

#9D6543

accent

#8247E1

background

#F6F7F9

surface

#EBEEF1

border

#C6C9CB

text

#06090D

muted

#7A7B7E

Preview Lab

Preview with #1C4B68

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

Preview Lab → · Contrast checker → · Palette generator →