#1D4F71#1D4F71

#1D4F71 is a dark, moderate cyan. Relative luminance 0.070; OKLCH L 41.1% C 0.078 H 242.0°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#1D4F71
RGB	rgb(29, 79, 113)
HSL	hsl(204, 59%, 28%)
HSV	hsv(204, 74%, 44%)
CMYK	cmyk(74.3%, 30.1%, 0%, 55.7%)
CIE-LAB	lab(31.91, -4.34, -24.35)
CIE-LCH	lch(31.91, 24.73, 259.89°)
OKLab	oklab(41.08% -0.0365 -0.0688)
OKLCH	oklch(41.08% 0.078 242)
XYZ	xyz(6.2822, 7.0447, 16.6483)
Luminance	0.0704 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4F71 #713F1D

analogous

#1D7169 #1D4F71 #1D2571

triadic

#1D4F71 #711D4F #4F711D

tetradic

#1D4F71 #691D71 #713F1D #25711D

square

#1D4F71 #691D71 #713F1D #25711D

split-complementary

#1D4F71 #711D25 #71691D

monochromatic

#061118 #112D40 #1D4F71 #2971A2 #3C92CD

Accessibility & contrast

On white

8.72

#1D4F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#1D4F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4F71

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4F71	#FFFFFF	#000000	##FFFFFF
##1D4F71	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5073

Deuteranopia (green-blind)

#344770

Tritanopia (blue-blind)

#00575B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1d4f71;
/* rgb */ color: rgb(29, 79, 113);
/* oklch */ color: oklch(41.1% 0.078 242.0);

Tailwind

colors: {
  custom: {
    50: '#65809a',
    500: '#1d4f71',
    950: '#000000',
  },
}

SCSS

$custom: #1d4f71;
$custom-light: #65809a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4f71",
  "rgb": {
    "r": 29,
    "g": 79,
    "b": 113
  },
  "hsl": {
    "h": 204.286,
    "s": 59.155,
    "l": 27.843
  },
  "oklch": {
    "l": 0.41075,
    "c": 0.07787,
    "h": 242
  },
  "luminance": 0.07045
}

Semantic roles & 50–950 ramp

primary

#1D4F71

secondary

#A56C44

accent

#8545E2

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1D4F71

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

Preview Lab → · Contrast checker → · Palette generator →