#1A3D7B#1A3D7B

#1A3D7B is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.2% C 0.113 H 260.8°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D7B
RGB	rgb(26, 61, 123)
HSL	hsl(218, 65%, 29%)
HSV	hsv(218, 79%, 48%)
CMYK	cmyk(78.9%, 50.4%, 0%, 51.8%)
CIE-LAB	lab(26.70, 11.32, -38.92)
CIE-LCH	lch(26.70, 40.54, 286.21°)
OKLab	oklab(37.18% -0.018 -0.1118)
OKLCH	oklch(37.18% 0.113 260.8)
XYZ	xyz(5.6686, 4.9865, 19.3988)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D7B #7B581A

analogous

#1A6E7B #1A3D7B #281A7B

triadic

#1A3D7B #7B1A3D #3D7B1A

tetradic

#1A3D7B #7B1A6E #7B581A #1A7B28

square

#1A3D7B #7B1A6E #7B581A #1A7B28

split-complementary

#1A3D7B #7B281A #6E7B1A

monochromatic

#050D19 #0F2448 #1A3D7B #2556AE #3A72D5

Accessibility & contrast

On white

10.51

#1A3D7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1A3D7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D7B

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D7B	#FFFFFF	#000000	##FFFFFF
##1A3D7B	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A447D

Deuteranopia (green-blind)

#003B7A

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1a3d7b;
/* rgb */ color: rgb(26, 61, 123);
/* oklch */ color: oklch(37.2% 0.113 260.8);

Tailwind

colors: {
  custom: {
    50: '#6671a2',
    500: '#1a3d7b',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d7b;
$custom-light: #6671a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d7b",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 123
  },
  "hsl": {
    "h": 218.351,
    "s": 65.101,
    "l": 29.216
  },
  "oklch": {
    "l": 0.37177,
    "c": 0.11327,
    "h": 260.8
  },
  "luminance": 0.04987
}

Semantic roles & 50–950 ramp

primary

#1A3D7B

secondary

#AF8842

accent

#AB40E8

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A3D7B

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

Preview Lab → · Contrast checker → · Palette generator →