#1957B3#1957B3

#1957B3 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.4% C 0.159 H 259.0°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#1957B3
RGB	rgb(25, 87, 179)
HSL	hsl(216, 75%, 40%)
HSV	hsv(216, 86%, 70%)
CMYK	cmyk(86%, 51.4%, 0%, 29.8%)
CIE-LAB	lab(38.33, 16.24, -54.18)
CIE-LCH	lch(38.33, 56.56, 286.68°)
OKLab	oklab(47.36% -0.0304 -0.1562)
OKLCH	oklch(47.36% 0.159 259)
XYZ	xyz(11.9428, 10.2762, 43.9931)
Luminance	0.1028 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1957B3 #B37519

analogous

#19A4B3 #1957B3 #2819B3

triadic

#1957B3 #B31957 #57B319

tetradic

#1957B3 #B319A4 #B37519 #19B328

square

#1957B3 #B319A4 #B37519 #19B328

split-complementary

#1957B3 #B32819 #A4B319

monochromatic

#0A2348 #123D7D #1957B3 #2873E1 #5E96E8

Accessibility & contrast

On white

6.87

#1957B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#1957B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1957B3

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1957B3	#FFFFFF	#000000	##FFFFFF
##1957B3	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1961B6

Deuteranopia (green-blind)

#0054B1

Tritanopia (blue-blind)

#006E7C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1957b3;
/* rgb */ color: rgb(25, 87, 179);
/* oklch */ color: oklch(47.4% 0.159 259.0);

Tailwind

colors: {
  custom: {
    50: '#7385ca',
    500: '#1957b3',
    950: '#000000',
  },
}

SCSS

$custom: #1957b3;
$custom-light: #7385ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1957b3",
  "rgb": {
    "r": 25,
    "g": 87,
    "b": 179
  },
  "hsl": {
    "h": 215.844,
    "s": 75.49,
    "l": 40
  },
  "oklch": {
    "l": 0.4736,
    "c": 0.15911,
    "h": 259
  },
  "luminance": 0.10278
}

Semantic roles & 50–950 ramp

primary

#1957B3

secondary

#CC9F5B

accent

#A636F2

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1957B3

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

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