#1959B4#1959B4

#1959B4 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.9% C 0.158 H 258.4°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#1959B4
RGB	rgb(25, 89, 180)
HSL	hsl(215, 76%, 40%)
HSV	hsv(215, 86%, 71%)
CMYK	cmyk(86.1%, 50.6%, 0%, 29.4%)
CIE-LAB	lab(38.98, 15.31, -53.73)
CIE-LCH	lch(38.98, 55.87, 285.91°)
OKLab	oklab(47.88% -0.0317 -0.1548)
OKLCH	oklch(47.88% 0.158 258.4)
XYZ	xyz(12.2085, 10.6452, 44.5824)
Luminance	0.1065 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1959B4 #B47419

analogous

#19A6B4 #1959B4 #2719B4

triadic

#1959B4 #B41959 #59B419

tetradic

#1959B4 #B419A6 #B47419 #19B427

square

#1959B4 #B419A6 #B47419 #19B427

split-complementary

#1959B4 #B42719 #A6B419

monochromatic

#0A2449 #123E7E #1959B4 #2975E1 #5F98E9

Accessibility & contrast

On white

6.71

#1959B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#1959B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1959B4

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1959B4	#FFFFFF	#000000	##FFFFFF
##1959B4	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E63B7

Deuteranopia (green-blind)

#0055B2

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1959b4;
/* rgb */ color: rgb(25, 89, 180);
/* oklch */ color: oklch(47.9% 0.158 258.4);

Tailwind

colors: {
  custom: {
    50: '#7387cb',
    500: '#1959b4',
    950: '#000000',
  },
}

SCSS

$custom: #1959b4;
$custom-light: #7387cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1959b4",
  "rgb": {
    "r": 25,
    "g": 89,
    "b": 180
  },
  "hsl": {
    "h": 215.226,
    "s": 75.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.47875,
    "c": 0.158,
    "h": 258.4
  },
  "luminance": 0.10647
}

Semantic roles & 50–950 ramp

primary

#1959B4

secondary

#CD9E5C

accent

#A436F2

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1959B4

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

Preview Lab → · Contrast checker → · Palette generator →