#1A437D#1A437D

#1A437D is a dark, moderate blue. Relative luminance 0.057; OKLCH L 38.7% C 0.108 H 257.7°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#1A437D
RGB	rgb(26, 67, 125)
HSL	hsl(215, 66%, 30%)
HSV	hsv(215, 79%, 49%)
CMYK	cmyk(79.2%, 46.4%, 0%, 51%)
CIE-LAB	lab(28.68, 7.97, -36.99)
CIE-LCH	lch(28.68, 37.84, 282.16°)
OKLab	oklab(38.75% -0.0231 -0.106)
OKLCH	oklch(38.75% 0.109 257.7)
XYZ	xyz(6.1335, 5.7139, 20.1777)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A437D #7D541A

analogous

#1A747D #1A437D #231A7D

triadic

#1A437D #7D1A43 #437D1A

tetradic

#1A437D #7D1A74 #7D541A #1A7D23

square

#1A437D #7D1A74 #7D541A #1A7D23

split-complementary

#1A437D #7D231A #747D1A

monochromatic

#050E19 #0F284A #1A437D #255EB0 #3B7BD6

Accessibility & contrast

On white

9.80

#1A437D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#1A437D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A437D

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A437D	#FFFFFF	#000000	##FFFFFF
##1A437D	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25487F

Deuteranopia (green-blind)

#103F7C

Tritanopia (blue-blind)

#00515A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1a437d;
/* rgb */ color: rgb(26, 67, 125);
/* oklch */ color: oklch(38.7% 0.108 257.7);

Tailwind

colors: {
  custom: {
    50: '#6676a3',
    500: '#1a437d',
    950: '#000000',
  },
}

SCSS

$custom: #1a437d;
$custom-light: #6676a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a437d",
  "rgb": {
    "r": 26,
    "g": 67,
    "b": 125
  },
  "hsl": {
    "h": 215.152,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.38748,
    "c": 0.1085,
    "h": 257.7
  },
  "luminance": 0.05715
}

Semantic roles & 50–950 ramp

primary

#1A437D

secondary

#B18342

accent

#A23FE9

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1A437D

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

Preview Lab → · Contrast checker → · Palette generator →