#1557CA#1557CA

#1557CA is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.1% C 0.190 H 261.0°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#1557CA
RGB	rgb(21, 87, 202)
HSL	hsl(218, 81%, 44%)
HSV	hsv(218, 90%, 79%)
CMYK	cmyk(89.6%, 56.9%, 0%, 20.8%)
CIE-LAB	lab(39.98, 25.10, -64.93)
CIE-LCH	lch(39.98, 69.62, 291.14°)
OKLab	oklab(49.13% -0.0298 -0.1878)
OKLCH	oklch(49.13% 0.19 261)
XYZ	xyz(14.3742, 11.2382, 57.2772)
Luminance	0.1124 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1557CA #CA8815

analogous

#15B1CA #1557CA #2E15CA

triadic

#1557CA #CA1557 #57CA15

tetradic

#1557CA #CA15B1 #CA8815 #15CA2E

square

#1557CA #CA15B1 #CA8815 #15CA2E

split-complementary

#1557CA #CA2E15 #B1CA15

monochromatic

#09275B #0F3F93 #1557CA #3275EA #6A9BEF

Accessibility & contrast

On white

6.47

#1557CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#1557CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1557CA

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1557CA	#FFFFFF	#000000	##FFFFFF
##1557CA	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CE

Deuteranopia (green-blind)

#0057C8

Tritanopia (blue-blind)

#007488

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #1557ca;
/* rgb */ color: rgb(21, 87, 202);
/* oklch */ color: oklch(49.1% 0.190 261.0);

Tailwind

colors: {
  custom: {
    50: '#7885db',
    500: '#1557ca',
    950: '#000000',
  },
}

SCSS

$custom: #1557ca;
$custom-light: #7885db;
$custom-dark: #000000;

JSON

{
  "hex": "#1557ca",
  "rgb": {
    "r": 21,
    "g": 87,
    "b": 202
  },
  "hsl": {
    "h": 218.122,
    "s": 81.166,
    "l": 43.725
  },
  "oklch": {
    "l": 0.49131,
    "c": 0.19017,
    "h": 261
  },
  "luminance": 0.1124
}

Semantic roles & 50–950 ramp

primary

#1557CA

secondary

#D5AC66

accent

#AF30F8

background

#F8F8FD

surface

#EFEFFB

border

#CACAD4

text

#0B0B15

muted

#7C7C83

Preview Lab

Preview with #1557CA

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

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