#1D5F9A#1D5F9A

#1D5F9A is a mid, moderate cyan. Relative luminance 0.108; OKLCH L 47.5% C 0.115 H 249.8°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#1D5F9A
RGB	rgb(29, 95, 154)
HSL	hsl(208, 68%, 36%)
HSV	hsv(208, 81%, 60%)
CMYK	cmyk(81.2%, 38.3%, 0%, 39.6%)
CIE-LAB	lab(39.20, 1.43, -37.93)
CIE-LCH	lch(39.20, 37.95, 272.16°)
OKLab	oklab(47.55% -0.0399 -0.1082)
OKLCH	oklch(47.55% 0.115 249.8)
XYZ	xyz(10.4294, 10.7775, 32.0962)
Luminance	0.1078 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5F9A #9A581D

analogous

#1D9A96 #1D5F9A #1D209A

triadic

#1D5F9A #9A1D5F #5F9A1D

tetradic

#1D5F9A #961D9A #9A581D #209A1D

square

#1D5F9A #961D9A #9A581D #209A1D

split-complementary

#1D5F9A #9A1D20 #9A961D

monochromatic

#0A1F33 #133F66 #1D5F9A #277FCE #539DDF

Accessibility & contrast

On white

6.65

#1D5F9A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#1D5F9A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5F9A

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5F9A	#FFFFFF	#000000	##FFFFFF
##1D5F9A	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43629C

Deuteranopia (green-blind)

#305799

Tritanopia (blue-blind)

#006D75

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1d5f9a;
/* rgb */ color: rgb(29, 95, 154);
/* oklch */ color: oklch(47.5% 0.115 249.8);

Tailwind

colors: {
  custom: {
    50: '#6e8cb8',
    500: '#1d5f9a',
    950: '#000000',
  },
}

SCSS

$custom: #1d5f9a;
$custom-light: #6e8cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5f9a",
  "rgb": {
    "r": 29,
    "g": 95,
    "b": 154
  },
  "hsl": {
    "h": 208.32,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.47547,
    "c": 0.1153,
    "h": 249.8
  },
  "luminance": 0.10779
}

Semantic roles & 50–950 ramp

primary

#1D5F9A

secondary

#C28651

accent

#8F3DEB

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080C11

muted

#7B7D80

Preview Lab

Preview with #1D5F9A

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

Preview Lab → · Contrast checker → · Palette generator →