#1943B4#1943B4

#1943B4 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.3% C 0.185 H 264.2°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#1943B4
RGB	rgb(25, 67, 180)
HSL	hsl(224, 76%, 40%)
HSV	hsv(224, 86%, 71%)
CMYK	cmyk(86.1%, 62.8%, 0%, 29.4%)
CIE-LAB	lab(32.95, 30.00, -63.53)
CIE-LCH	lch(32.95, 70.26, 295.28°)
OKLab	oklab(43.32% -0.0186 -0.184)
OKLCH	oklch(43.32% 0.185 264.2)
XYZ	xyz(10.6433, 7.5149, 44.0607)
Luminance	0.0752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1943B4 #B48A19

analogous

#1990B4 #1943B4 #3C19B4

triadic

#1943B4 #B41943 #43B419

tetradic

#1943B4 #B41990 #B48A19 #19B43C

square

#1943B4 #B41990 #B48A19 #19B43C

split-complementary

#1943B4 #B43C19 #90B419

monochromatic

#0A1B49 #122F7E #1943B4 #295BE1 #5F84E9

Accessibility & contrast

On white

8.39

#1943B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1943B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1943B4

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1943B4	#FFFFFF	#000000	##FFFFFF
##1943B4	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B8

Deuteranopia (green-blind)

#0046B2

Tritanopia (blue-blind)

#006175

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1943b4;
/* rgb */ color: rgb(25, 67, 180);
/* oklch */ color: oklch(43.3% 0.185 264.2);

Tailwind

colors: {
  custom: {
    50: '#7576cb',
    500: '#1943b4',
    950: '#000000',
  },
}

SCSS

$custom: #1943b4;
$custom-light: #7576cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1943b4",
  "rgb": {
    "r": 25,
    "g": 67,
    "b": 180
  },
  "hsl": {
    "h": 223.742,
    "s": 75.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.43324,
    "c": 0.18494,
    "h": 264.2
  },
  "luminance": 0.07516
}

Semantic roles & 50–950 ramp

primary

#1943B4

secondary

#CDAE5C

accent

#BF36F2

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #1943B4

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

Preview Lab → · Contrast checker → · Palette generator →