#1D5F8A#1D5F8A

#1D5F8A is a mid, moderate cyan. Relative luminance 0.103; OKLCH L 46.6% C 0.095 H 242.0°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#1D5F8A
RGB	rgb(29, 95, 138)
HSL	hsl(204, 65%, 33%)
HSV	hsv(204, 79%, 54%)
CMYK	cmyk(79%, 31.2%, 0%, 45.9%)
CIE-LAB	lab(38.34, -4.78, -29.65)
CIE-LCH	lch(38.34, 30.04, 260.85°)
OKLab	oklab(46.58% -0.0446 -0.084)
OKLCH	oklch(46.58% 0.095 242)
XYZ	xyz(9.1846, 10.2795, 25.5399)
Luminance	0.1028 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5F8A #8A481D

analogous

#1D8A7E #1D5F8A #1D288A

triadic

#1D5F8A #8A1D5F #5F8A1D

tetradic

#1D5F8A #7E1D8A #8A481D #288A1D

square

#1D5F8A #7E1D8A #8A481D #288A1D

split-complementary

#1D5F8A #8A1D28 #8A7E1D

monochromatic

#081925 #123C57 #1D5F8A #2882BD #49A0D9

Accessibility & contrast

On white

6.87

#1D5F8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#1D5F8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5F8A

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5F8A	#FFFFFF	#000000	##FFFFFF
##1D5F8A	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B608C

Deuteranopia (green-blind)

#3C5689

Tritanopia (blue-blind)

#006A6E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1d5f8a;
/* rgb */ color: rgb(29, 95, 138);
/* oklch */ color: oklch(46.6% 0.095 242.0);

Tailwind

colors: {
  custom: {
    50: '#6a8cac',
    500: '#1d5f8a',
    950: '#000000',
  },
}

SCSS

$custom: #1d5f8a;
$custom-light: #6a8cac;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5f8a",
  "rgb": {
    "r": 29,
    "g": 95,
    "b": 138
  },
  "hsl": {
    "h": 203.67,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.46584,
    "c": 0.09514,
    "h": 242
  },
  "luminance": 0.10281
}

Semantic roles & 50–950 ramp

primary

#1D5F8A

secondary

#BB7548

accent

#8240E8

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C10

muted

#7A7D7F

Preview Lab

Preview with #1D5F8A

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

Preview Lab → · Contrast checker → · Palette generator →