#1D648F#1D648F

#1D648F is a mid, moderate cyan. Relative luminance 0.114; OKLCH L 48.1% C 0.097 H 240.4°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#1D648F
RGB	rgb(29, 100, 143)
HSL	hsl(203, 66%, 34%)
HSV	hsv(203, 80%, 56%)
CMYK	cmyk(79.7%, 30.1%, 0%, 43.9%)
CIE-LAB	lab(40.18, -5.94, -29.79)
CIE-LCH	lch(40.18, 30.37, 258.72°)
OKLab	oklab(48.12% -0.0479 -0.0843)
OKLCH	oklch(48.12% 0.097 240.4)
XYZ	xyz(10.0198, 11.3575, 27.6454)
Luminance	0.1136 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D648F #8F481D

analogous

#1D8F81 #1D648F #1D2B8F

triadic

#1D648F #8F1D64 #648F1D

tetradic

#1D648F #811D8F #8F481D #2B8F1D

square

#1D648F #811D8F #8F481D #2B8F1D

split-complementary

#1D648F #8F1D2B #8F811D

monochromatic

#081D29 #13405C #1D648F #2788C2 #4CA5DB

Accessibility & contrast

On white

6.42

#1D648F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#1D648F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D648F

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D648F	#FFFFFF	#000000	##FFFFFF
##1D648F	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#506591

Deuteranopia (green-blind)

#405A8E

Tritanopia (blue-blind)

#006F73

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #1d648f;
/* rgb */ color: rgb(29, 100, 143);
/* oklch */ color: oklch(48.1% 0.097 240.4);

Tailwind

colors: {
  custom: {
    50: '#6c90b0',
    500: '#1d648f',
    950: '#000000',
  },
}

SCSS

$custom: #1d648f;
$custom-light: #6c90b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d648f",
  "rgb": {
    "r": 29,
    "g": 100,
    "b": 143
  },
  "hsl": {
    "h": 202.632,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.48122,
    "c": 0.09699,
    "h": 240.4
  },
  "luminance": 0.11359
}

Semantic roles & 50–950 ramp

primary

#1D648F

secondary

#BD764B

accent

#7F3FE9

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C10

muted

#7A7D7F

Preview Lab

Preview with #1D648F

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

Preview Lab → · Contrast checker → · Palette generator →