#1D5E8F#1D5E8F

#1D5E8F is a mid, moderate cyan. Relative luminance 0.102; OKLCH L 46.6% C 0.102 H 245.7°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#1D5E8F
RGB	rgb(29, 94, 143)
HSL	hsl(206, 66%, 34%)
HSV	hsv(206, 80%, 56%)
CMYK	cmyk(79.7%, 34.3%, 0%, 43.9%)
CIE-LAB	lab(38.29, -2.23, -32.77)
CIE-LCH	lch(38.29, 32.84, 266.11°)
OKLab	oklab(46.63% -0.0421 -0.0931)
OKLCH	oklch(46.63% 0.102 245.7)
XYZ	xyz(9.4654, 10.2487, 27.4606)
Luminance	0.1025 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5E8F #8F4E1D

analogous

#1D8F87 #1D5E8F #1D258F

triadic

#1D5E8F #8F1D5E #5E8F1D

tetradic

#1D5E8F #871D8F #8F4E1D #258F1D

square

#1D5E8F #871D8F #8F4E1D #258F1D

split-complementary

#1D5E8F #8F1D25 #8F871D

monochromatic

#081B29 #133D5C #1D5E8F #277FC2 #4C9DDB

Accessibility & contrast

On white

6.89

#1D5E8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#1D5E8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5E8F

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5E8F	#FFFFFF	#000000	##FFFFFF
##1D5E8F	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#476091

Deuteranopia (green-blind)

#37558E

Tritanopia (blue-blind)

#006A70

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1d5e8f;
/* rgb */ color: rgb(29, 94, 143);
/* oklch */ color: oklch(46.6% 0.102 245.7);

Tailwind

colors: {
  custom: {
    50: '#6b8bb0',
    500: '#1d5e8f',
    950: '#000000',
  },
}

SCSS

$custom: #1d5e8f;
$custom-light: #6b8bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5e8f",
  "rgb": {
    "r": 29,
    "g": 94,
    "b": 143
  },
  "hsl": {
    "h": 205.789,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.46627,
    "c": 0.10217,
    "h": 245.7
  },
  "luminance": 0.1025
}

Semantic roles & 50–950 ramp

primary

#1D5E8F

secondary

#BD7C4B

accent

#883FE9

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C10

muted

#7A7D7F

Preview Lab

Preview with #1D5E8F

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

Preview Lab → · Contrast checker → · Palette generator →