#1A233E#1A233E

#1A233E is a dark, muted blue. Relative luminance 0.018; OKLCH L 26.2% C 0.052 H 268.7°. Best body text is #FFFFFF at 15.51:1 contrast (WCAG AA passes).

Color values

HEX	#1A233E
RGB	rgb(26, 35, 62)
HSL	hsl(225, 41%, 17%)
HSV	hsv(225, 58%, 24%)
CMYK	cmyk(58.1%, 43.5%, 0%, 75.7%)
CIE-LAB	lab(14.23, 5.32, -18.53)
CIE-LCH	lch(14.23, 19.28, 286.02°)
OKLab	oklab(26.25% -0.0012 -0.0524)
OKLCH	oklch(26.25% 0.052 268.7)
XYZ	xyz(1.8963, 1.7694, 4.7981)
Luminance	0.0177 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A233E #3E351A

analogous

#1A353E #1A233E #231A3E

triadic

#1A233E #3E1A23 #233E1A

tetradic

#1A233E #3E1A35 #3E351A #1A3E23

square

#1A233E #3E1A35 #3E351A #1A3E23

split-complementary

#1A233E #3E231A #353E1A

monochromatic

#090C16 #090C16 #1A233E #2C3B69 #3E5494

Accessibility & contrast

On white

15.51

#1A233E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#1A233E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A233E

15.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A233E	#FFFFFF	#000000	##FFFFFF
##1A233E	1.00	15.51	1.35	15.51
#FFFFFF	15.51	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18263F

Deuteranopia (green-blind)

#15233D

Tritanopia (blue-blind)

#0A292D

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1a233e;
/* rgb */ color: rgb(26, 35, 62);
/* oklch */ color: oklch(26.2% 0.052 268.7);

Tailwind

colors: {
  custom: {
    50: '#595d73',
    500: '#1a233e',
    950: '#000000',
  },
}

SCSS

$custom: #1a233e;
$custom-light: #595d73;
$custom-dark: #000000;

JSON

{
  "hex": "#1a233e",
  "rgb": {
    "r": 26,
    "g": 35,
    "b": 62
  },
  "hsl": {
    "h": 225,
    "s": 40.909,
    "l": 17.255
  },
  "oklch": {
    "l": 0.26245,
    "c": 0.05237,
    "h": 268.7
  },
  "luminance": 0.01769
}

Semantic roles & 50–950 ramp

primary

#1A233E

secondary

#746740

accent

#B257D1

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040408

muted

#79797B

Preview Lab

Preview with #1A233E

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

Preview Lab → · Contrast checker → · Palette generator →