#1D4570#1D4570

#1D4570 is a dark, moderate cyan. Relative luminance 0.057; OKLCH L 38.5% C 0.086 H 252.4°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#1D4570
RGB	rgb(29, 69, 112)
HSL	hsl(211, 59%, 28%)
HSV	hsv(211, 74%, 44%)
CMYK	cmyk(74.1%, 38.4%, 0%, 56.1%)
CIE-LAB	lab(28.61, 1.80, -28.92)
CIE-LCH	lch(28.61, 28.97, 273.57°)
OKLab	oklab(38.46% -0.0261 -0.0822)
OKLCH	oklch(38.46% 0.086 252.4)
XYZ	xyz(5.5584, 5.6867, 16.1308)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4570 #70481D

analogous

#1D6F70 #1D4570 #1E1D70

triadic

#1D4570 #701D45 #45701D

tetradic

#1D4570 #701D6F #70481D #1D701E

square

#1D4570 #701D6F #70481D #1D701E

split-complementary

#1D4570 #701E1D #6F701D

monochromatic

#060F18 #10273F #1D4570 #2A63A1 #3B81CC

Accessibility & contrast

On white

9.83

#1D4570 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#1D4570 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4570

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4570	#FFFFFF	#000000	##FFFFFF
##1D4570	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324872

Deuteranopia (green-blind)

#25406F

Tritanopia (blue-blind)

#004F55

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1d4570;
/* rgb */ color: rgb(29, 69, 112);
/* oklch */ color: oklch(38.5% 0.086 252.4);

Tailwind

colors: {
  custom: {
    50: '#647899',
    500: '#1d4570',
    950: '#000000',
  },
}

SCSS

$custom: #1d4570;
$custom-light: #647899;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4570",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 112
  },
  "hsl": {
    "h": 211.084,
    "s": 58.865,
    "l": 27.647
  },
  "oklch": {
    "l": 0.3846,
    "c": 0.08627,
    "h": 252.4
  },
  "luminance": 0.05687
}

Semantic roles & 50–950 ramp

primary

#1D4570

secondary

#A47644

accent

#9746E2

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1D4570

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

Preview Lab → · Contrast checker → · Palette generator →