#1657B3#1657B3

#1657B3 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.3% C 0.160 H 258.5°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#1657B3
RGB	rgb(22, 87, 179)
HSL	hsl(215, 78%, 39%)
HSV	hsv(215, 88%, 70%)
CMYK	cmyk(87.7%, 51.4%, 0%, 29.8%)
CIE-LAB	lab(38.27, 16.02, -54.28)
CIE-LCH	lch(38.27, 56.60, 286.44°)
OKLab	oklab(47.29% -0.0318 -0.1565)
OKLCH	oklch(47.29% 0.16 258.5)
XYZ	xyz(11.8728, 10.2401, 43.9899)
Luminance	0.1024 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1657B3 #B37216

analogous

#16A6B3 #1657B3 #2316B3

triadic

#1657B3 #B31657 #57B316

tetradic

#1657B3 #B316A6 #B37216 #16B323

square

#1657B3 #B316A6 #B37216 #16B323

split-complementary

#1657B3 #B32316 #A6B316

monochromatic

#092246 #0F3D7C #1657B3 #2272E4 #5995EB

Accessibility & contrast

On white

6.89

#1657B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#1657B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1657B3

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1657B3	#FFFFFF	#000000	##FFFFFF
##1657B3	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1861B6

Deuteranopia (green-blind)

#0054B1

Tritanopia (blue-blind)

#006E7C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1657b3;
/* rgb */ color: rgb(22, 87, 179);
/* oklch */ color: oklch(47.3% 0.160 258.5);

Tailwind

colors: {
  custom: {
    50: '#7285ca',
    500: '#1657b3',
    950: '#000000',
  },
}

SCSS

$custom: #1657b3;
$custom-light: #7285ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1657b3",
  "rgb": {
    "r": 22,
    "g": 87,
    "b": 179
  },
  "hsl": {
    "h": 215.159,
    "s": 78.109,
    "l": 39.412
  },
  "oklch": {
    "l": 0.47293,
    "c": 0.15971,
    "h": 258.5
  },
  "luminance": 0.10242
}

Semantic roles & 50–950 ramp

primary

#1657B3

secondary

#CE9D57

accent

#A533F5

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1657B3

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

Preview Lab → · Contrast checker → · Palette generator →