#1957B0#1957B0

#1957B0 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.1% C 0.155 H 258.5°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#1957B0
RGB	rgb(25, 87, 176)
HSL	hsl(215, 75%, 39%)
HSV	hsv(215, 86%, 69%)
CMYK	cmyk(85.8%, 50.6%, 0%, 31%)
CIE-LAB	lab(38.12, 15.04, -52.75)
CIE-LCH	lch(38.12, 54.85, 285.91°)
OKLab	oklab(47.13% -0.0308 -0.152)
OKLCH	oklch(47.13% 0.155 258.5)
XYZ	xyz(11.6427, 10.1562, 42.4126)
Luminance	0.1016 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1957B0 #B07219

analogous

#19A3B0 #1957B0 #2619B0

triadic

#1957B0 #B01957 #57B019

tetradic

#1957B0 #B019A3 #B07219 #19B026

square

#1957B0 #B019A3 #B07219 #19B026

split-complementary

#1957B0 #B02619 #A3B019

monochromatic

#0A2245 #113D7A #1957B0 #2672E0 #5C95E8

Accessibility & contrast

On white

6.93

#1957B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#1957B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1957B0

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1957B0	#FFFFFF	#000000	##FFFFFF
##1957B0	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E61B3

Deuteranopia (green-blind)

#0053AE

Tritanopia (blue-blind)

#006D7B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1957b0;
/* rgb */ color: rgb(25, 87, 176);
/* oklch */ color: oklch(47.1% 0.155 258.5);

Tailwind

colors: {
  custom: {
    50: '#7285c8',
    500: '#1957b0',
    950: '#000000',
  },
}

SCSS

$custom: #1957b0;
$custom-light: #7285c8;
$custom-dark: #000000;

JSON

{
  "hex": "#1957b0",
  "rgb": {
    "r": 25,
    "g": 87,
    "b": 176
  },
  "hsl": {
    "h": 215.364,
    "s": 75.124,
    "l": 39.412
  },
  "oklch": {
    "l": 0.4713,
    "c": 0.15508,
    "h": 258.5
  },
  "luminance": 0.10158
}

Semantic roles & 50–950 ramp

primary

#1957B0

secondary

#CC9D59

accent

#A536F2

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1957B0

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

Preview Lab → · Contrast checker → · Palette generator →