#1951B4#1951B4

#1951B4 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.2% C 0.168 H 261.0°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#1951B4
RGB	rgb(25, 81, 180)
HSL	hsl(218, 76%, 40%)
HSV	hsv(218, 86%, 71%)
CMYK	cmyk(86.1%, 55%, 0%, 29.4%)
CIE-LAB	lab(36.72, 20.64, -57.39)
CIE-LCH	lch(36.72, 60.99, 289.78°)
OKLab	oklab(46.15% -0.0264 -0.1657)
OKLCH	oklch(46.15% 0.168 261)
XYZ	xyz(11.5786, 9.3854, 44.3725)
Luminance	0.0939 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1951B4 #B47C19

analogous

#199EB4 #1951B4 #2F19B4

triadic

#1951B4 #B41951 #51B419

tetradic

#1951B4 #B4199E #B47C19 #19B42F

square

#1951B4 #B4199E #B47C19 #19B42F

split-complementary

#1951B4 #B42F19 #9EB419

monochromatic

#0A2149 #12397E #1951B4 #296CE1 #5F91E9

Accessibility & contrast

On white

7.30

#1951B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#1951B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1951B4

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1951B4	#FFFFFF	#000000	##FFFFFF
##1951B4	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB7

Deuteranopia (green-blind)

#0050B2

Tritanopia (blue-blind)

#006A7A

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1951b4;
/* rgb */ color: rgb(25, 81, 180);
/* oklch */ color: oklch(46.2% 0.168 261.0);

Tailwind

colors: {
  custom: {
    50: '#7381cb',
    500: '#1951b4',
    950: '#000000',
  },
}

SCSS

$custom: #1951b4;
$custom-light: #7381cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1951b4",
  "rgb": {
    "r": 25,
    "g": 81,
    "b": 180
  },
  "hsl": {
    "h": 218.323,
    "s": 75.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.46151,
    "c": 0.16784,
    "h": 261
  },
  "luminance": 0.09387
}

Semantic roles & 50–950 ramp

primary

#1951B4

secondary

#CDA45C

accent

#AE36F2

background

#F7F7FC

surface

#EEEEF9

border

#C9C9D2

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #1951B4

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

Preview Lab → · Contrast checker → · Palette generator →