#1A233B#1A233B

#1A233B is a dark, muted blue. Relative luminance 0.017; OKLCH L 26.0% C 0.047 H 267.5°. Best body text is #FFFFFF at 15.59:1 contrast (WCAG AA passes).

Color values

HEX	#1A233B
RGB	rgb(26, 35, 59)
HSL	hsl(224, 39%, 17%)
HSV	hsv(224, 56%, 23%)
CMYK	cmyk(55.9%, 40.7%, 0%, 76.9%)
CIE-LAB	lab(14.04, 4.18, -16.71)
CIE-LCH	lch(14.04, 17.22, 284.03°)
OKLab	oklab(26.04% -0.0021 -0.0471)
OKLCH	oklch(26.04% 0.047 267.5)
XYZ	xyz(1.8162, 1.7373, 4.3765)
Luminance	0.0174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A233B #3B321A

analogous

#1A343B #1A233B #221A3B

triadic

#1A233B #3B1A23 #233B1A

tetradic

#1A233B #3B1A34 #3B321A #1A3B22

square

#1A233B #3B1A34 #3B321A #1A3B22

split-complementary

#1A233B #3B221A #343B1A

monochromatic

#090D15 #090D15 #1A233B #2D3C65 #3F5590

Accessibility & contrast

On white

15.59

#1A233B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#1A233B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A233B

15.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A233B	#FFFFFF	#000000	##FFFFFF
##1A233B	1.00	15.59	1.35	15.59
#FFFFFF	15.59	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A253C

Deuteranopia (green-blind)

#16223A

Tritanopia (blue-blind)

#0D282C

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1a233b;
/* rgb */ color: rgb(26, 35, 59);
/* oklch */ color: oklch(26.0% 0.047 267.5);

Tailwind

colors: {
  custom: {
    50: '#595d71',
    500: '#1a233b',
    950: '#000000',
  },
}

SCSS

$custom: #1a233b;
$custom-light: #595d71;
$custom-dark: #000000;

JSON

{
  "hex": "#1a233b",
  "rgb": {
    "r": 26,
    "g": 35,
    "b": 59
  },
  "hsl": {
    "h": 223.636,
    "s": 38.824,
    "l": 16.667
  },
  "oklch": {
    "l": 0.26043,
    "c": 0.04712,
    "h": 267.5
  },
  "luminance": 0.01737
}

Semantic roles & 50–950 ramp

primary

#1A233B

secondary

#706340

accent

#AF59CF

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030407

muted

#78797A

Preview Lab

Preview with #1A233B

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

Preview Lab → · Contrast checker → · Palette generator →