#1A3D71#1A3D71

#1A3D71 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.4% C 0.099 H 258.4°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D71
RGB	rgb(26, 61, 113)
HSL	hsl(216, 63%, 27%)
HSV	hsv(216, 77%, 44%)
CMYK	cmyk(77%, 46%, 0%, 55.7%)
CIE-LAB	lab(26.01, 7.21, -33.70)
CIE-LCH	lch(26.01, 34.46, 282.07°)
OKLab	oklab(36.43% -0.0199 -0.0965)
OKLCH	oklch(36.43% 0.099 258.4)
XYZ	xyz(5.0743, 4.7488, 16.2688)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D71 #714E1A

analogous

#1A6971 #1A3D71 #221A71

triadic

#1A3D71 #711A3D #3D711A

tetradic

#1A3D71 #711A69 #714E1A #1A7122

square

#1A3D71 #711A69 #714E1A #1A7122

split-complementary

#1A3D71 #71221A #69711A

monochromatic

#060D19 #0F223F #1A3D71 #2558A3 #3573D0

Accessibility & contrast

On white

10.77

#1A3D71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1A3D71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D71

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D71	#FFFFFF	#000000	##FFFFFF
##1A3D71	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234273

Deuteranopia (green-blind)

#133A70

Tritanopia (blue-blind)

#004951

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1a3d71;
/* rgb */ color: rgb(26, 61, 113);
/* oklch */ color: oklch(36.4% 0.099 258.4);

Tailwind

colors: {
  custom: {
    50: '#64729a',
    500: '#1a3d71',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d71;
$custom-light: #64729a;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d71",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 113
  },
  "hsl": {
    "h": 215.862,
    "s": 62.59,
    "l": 27.255
  },
  "oklch": {
    "l": 0.36425,
    "c": 0.0985,
    "h": 258.4
  },
  "luminance": 0.04749
}

Semantic roles & 50–950 ramp

primary

#1A3D71

secondary

#A67D41

accent

#A442E6

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1A3D71

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

Preview Lab → · Contrast checker → · Palette generator →