#1A437F#1A437F

#1A437F is a dark, moderate blue. Relative luminance 0.058; OKLCH L 38.9% C 0.111 H 258.3°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#1A437F
RGB	rgb(26, 67, 127)
HSL	hsl(216, 66%, 30%)
HSV	hsv(216, 80%, 50%)
CMYK	cmyk(79.5%, 47.2%, 0%, 50.2%)
CIE-LAB	lab(28.81, 8.79, -38.03)
CIE-LCH	lch(28.81, 39.03, 283.01°)
OKLab	oklab(38.9% -0.0227 -0.1091)
OKLCH	oklch(38.9% 0.111 258.3)
XYZ	xyz(6.2625, 5.7655, 20.8574)
Luminance	0.0577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A437F #7F561A

analogous

#1A757F #1A437F #241A7F

triadic

#1A437F #7F1A43 #437F1A

tetradic

#1A437F #7F1A75 #7F561A #1A7F24

square

#1A437F #7F1A75 #7F561A #1A7F24

split-complementary

#1A437F #7F241A #757F1A

monochromatic

#050D19 #10284C #1A437F #245EB2 #3C7BD7

Accessibility & contrast

On white

9.75

#1A437F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1A437F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A437F

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A437F	#FFFFFF	#000000	##FFFFFF
##1A437F	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234981

Deuteranopia (green-blind)

#0C407E

Tritanopia (blue-blind)

#00515A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1a437f;
/* rgb */ color: rgb(26, 67, 127);
/* oklch */ color: oklch(38.9% 0.111 258.3);

Tailwind

colors: {
  custom: {
    50: '#6776a4',
    500: '#1a437f',
    950: '#000000',
  },
}

SCSS

$custom: #1a437f;
$custom-light: #6776a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1a437f",
  "rgb": {
    "r": 26,
    "g": 67,
    "b": 127
  },
  "hsl": {
    "h": 215.644,
    "s": 66.013,
    "l": 30
  },
  "oklch": {
    "l": 0.38895,
    "c": 0.1114,
    "h": 258.3
  },
  "luminance": 0.05766
}

Semantic roles & 50–950 ramp

primary

#1A437F

secondary

#B38542

accent

#A43FE9

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1A437F

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

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