#1D4971#1D4971

#1D4971 is a dark, moderate cyan. Relative luminance 0.062; OKLCH L 39.5% C 0.083 H 248.9°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#1D4971
RGB	rgb(29, 73, 113)
HSL	hsl(209, 59%, 28%)
HSV	hsv(209, 74%, 44%)
CMYK	cmyk(74.3%, 35.4%, 0%, 55.7%)
CIE-LAB	lab(29.96, -0.46, -27.42)
CIE-LCH	lch(29.96, 27.42, 269.04°)
OKLab	oklab(39.53% -0.03 -0.0778)
OKLCH	oklch(39.53% 0.083 248.9)
XYZ	xyz(5.8688, 6.2179, 16.5105)
Luminance	0.0622 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4971 #71451D

analogous

#1D716F #1D4971 #1D1F71

triadic

#1D4971 #711D49 #49711D

tetradic

#1D4971 #6F1D71 #71451D #1F711D

square

#1D4971 #6F1D71 #71451D #1F711D

split-complementary

#1D4971 #711D1F #716F1D

monochromatic

#061018 #112A40 #1D4971 #2968A2 #3C88CD

Accessibility & contrast

On white

9.36

#1D4971 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1D4971 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4971

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4971	#FFFFFF	#000000	##FFFFFF
##1D4971	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#374B73

Deuteranopia (green-blind)

#2B4370

Tritanopia (blue-blind)

#005257

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1d4971;
/* rgb */ color: rgb(29, 73, 113);
/* oklch */ color: oklch(39.5% 0.083 248.9);

Tailwind

colors: {
  custom: {
    50: '#657b9a',
    500: '#1d4971',
    950: '#000000',
  },
}

SCSS

$custom: #1d4971;
$custom-light: #657b9a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4971",
  "rgb": {
    "r": 29,
    "g": 73,
    "b": 113
  },
  "hsl": {
    "h": 208.571,
    "s": 59.155,
    "l": 27.843
  },
  "oklch": {
    "l": 0.39535,
    "c": 0.08339,
    "h": 248.9
  },
  "luminance": 0.06219
}

Semantic roles & 50–950 ramp

primary

#1D4971

secondary

#A57344

accent

#9045E2

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1D4971

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

Preview Lab → · Contrast checker → · Palette generator →