#1945B4#1945B4

#1945B4 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.7% C 0.183 H 263.9°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#1945B4
RGB	rgb(25, 69, 180)
HSL	hsl(223, 76%, 40%)
HSV	hsv(223, 86%, 71%)
CMYK	cmyk(86.1%, 61.7%, 0%, 29.4%)
CIE-LAB	lab(33.47, 28.67, -62.68)
CIE-LCH	lch(33.47, 68.93, 294.58°)
OKLab	oklab(43.71% -0.0195 -0.1815)
OKLCH	oklch(43.71% 0.183 263.9)
XYZ	xyz(10.7643, 7.7568, 44.1010)
Luminance	0.0776 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1945B4 #B48819

analogous

#1992B4 #1945B4 #3B19B4

triadic

#1945B4 #B41945 #45B419

tetradic

#1945B4 #B41992 #B48819 #19B43B

square

#1945B4 #B41992 #B48819 #19B43B

split-complementary

#1945B4 #B43B19 #92B419

monochromatic

#0A1C49 #12307E #1945B4 #295DE1 #5F86E9

Accessibility & contrast

On white

8.23

#1945B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#1945B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1945B4

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1945B4	#FFFFFF	#000000	##FFFFFF
##1945B4	1.00	8.23	2.55	8.23
#FFFFFF	8.23	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B8

Deuteranopia (green-blind)

#0048B2

Tritanopia (blue-blind)

#006276

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1945b4;
/* rgb */ color: rgb(25, 69, 180);
/* oklch */ color: oklch(43.7% 0.183 263.9);

Tailwind

colors: {
  custom: {
    50: '#7478cb',
    500: '#1945b4',
    950: '#000000',
  },
}

SCSS

$custom: #1945b4;
$custom-light: #7478cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1945b4",
  "rgb": {
    "r": 25,
    "g": 69,
    "b": 180
  },
  "hsl": {
    "h": 222.968,
    "s": 75.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.43711,
    "c": 0.18254,
    "h": 263.9
  },
  "luminance": 0.07758
}

Semantic roles & 50–950 ramp

primary

#1945B4

secondary

#CDAD5C

accent

#BD36F2

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #1945B4

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

Preview Lab → · Contrast checker → · Palette generator →