#1D4173#1D4173

#1D4173 is a dark, moderate cyan. Relative luminance 0.053; OKLCH L 37.7% C 0.095 H 257.2°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#1D4173
RGB	rgb(29, 65, 115)
HSL	hsl(215, 60%, 28%)
HSV	hsv(215, 75%, 45%)
CMYK	cmyk(74.8%, 43.5%, 0%, 54.9%)
CIE-LAB	lab(27.52, 5.72, -32.55)
CIE-LCH	lch(27.52, 33.05, 279.96°)
OKLab	oklab(37.67% -0.0211 -0.093)
OKLCH	oklch(37.67% 0.095 257.2)
XYZ	xyz(5.4904, 5.2790, 16.9459)
Luminance	0.0528 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4173 #734F1D

analogous

#1D6C73 #1D4173 #241D73

triadic

#1D4173 #731D41 #41731D

tetradic

#1D4173 #731D6C #734F1D #1D7324

square

#1D4173 #731D6C #734F1D #1D7324

split-complementary

#1D4173 #73241D #6C731D

monochromatic

#060E18 #112542 #1D4173 #295DA4 #3C79CE

Accessibility & contrast

On white

10.21

#1D4173 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1D4173 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4173

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4173	#FFFFFF	#000000	##FFFFFF
##1D4173	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294575

Deuteranopia (green-blind)

#1B3D72

Tritanopia (blue-blind)

#004D54

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1d4173;
/* rgb */ color: rgb(29, 65, 115);
/* oklch */ color: oklch(37.7% 0.095 257.2);

Tailwind

colors: {
  custom: {
    50: '#65759b',
    500: '#1d4173',
    950: '#000000',
  },
}

SCSS

$custom: #1d4173;
$custom-light: #65759b;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4173",
  "rgb": {
    "r": 29,
    "g": 65,
    "b": 115
  },
  "hsl": {
    "h": 214.884,
    "s": 59.722,
    "l": 28.235
  },
  "oklch": {
    "l": 0.37668,
    "c": 0.09534,
    "h": 257.2
  },
  "luminance": 0.0528
}

Semantic roles & 50–950 ramp

primary

#1D4173

secondary

#A77E45

accent

#A145E3

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1D4173

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

Preview Lab → · Contrast checker → · Palette generator →