#1D2F71#1D2F71

#1D2F71 is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.3% C 0.116 H 268.0°. Best body text is #FFFFFF at 12.37:1 contrast (WCAG AA passes).

Color values

HEX	#1D2F71
RGB	rgb(29, 47, 113)
HSL	hsl(227, 59%, 28%)
HSV	hsv(227, 74%, 44%)
CMYK	cmyk(74.3%, 58.4%, 0%, 55.7%)
CIE-LAB	lab(21.89, 17.58, -40.33)
CIE-LCH	lch(21.89, 43.99, 293.56°)
OKLab	oklab(33.32% -0.0041 -0.1162)
OKLCH	oklch(33.32% 0.116 268)
XYZ	xyz(4.5028, 3.4860, 16.0552)
Luminance	0.0349 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2F71 #715F1D

analogous

#1D5971 #1D2F71 #351D71

triadic

#1D2F71 #711D2F #2F711D

tetradic

#1D2F71 #711D59 #715F1D #1D7135

square

#1D2F71 #711D59 #715F1D #1D7135

split-complementary

#1D2F71 #71351D #59711D

monochromatic

#060A18 #111B40 #1D2F71 #2943A2 #3C5BCD

Accessibility & contrast

On white

12.37

#1D2F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1D2F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2F71

12.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2F71	#FFFFFF	#000000	##FFFFFF
##1D2F71	1.00	12.37	1.70	12.37
#FFFFFF	12.37	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003873

Deuteranopia (green-blind)

#003170

Tritanopia (blue-blind)

#003F4B

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d2f71;
/* rgb */ color: rgb(29, 47, 113);
/* oklch */ color: oklch(33.3% 0.116 268.0);

Tailwind

colors: {
  custom: {
    50: '#65679a',
    500: '#1d2f71',
    950: '#000000',
  },
}

SCSS

$custom: #1d2f71;
$custom-light: #65679a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2f71",
  "rgb": {
    "r": 29,
    "g": 47,
    "b": 113
  },
  "hsl": {
    "h": 227.143,
    "s": 59.155,
    "l": 27.843
  },
  "oklch": {
    "l": 0.33325,
    "c": 0.11623,
    "h": 268
  },
  "luminance": 0.03486
}

Semantic roles & 50–950 ramp

primary

#1D2F71

secondary

#A59144

accent

#C145E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1D2F71

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

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