#1C58B4#1C58B4

#1C58B4 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.7% C 0.159 H 259.3°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#1C58B4
RGB	rgb(28, 88, 180)
HSL	hsl(216, 73%, 41%)
HSV	hsv(216, 84%, 71%)
CMYK	cmyk(84.4%, 51.1%, 0%, 29.4%)
CIE-LAB	lab(38.76, 16.21, -54.07)
CIE-LCH	lch(38.76, 56.45, 286.69°)
OKLab	oklab(47.73% -0.0295 -0.1558)
OKLCH	oklch(47.73% 0.159 259.3)
XYZ	xyz(12.2038, 10.5201, 44.5585)
Luminance	0.1052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C58B4 #B4781C

analogous

#1CA4B4 #1C58B4 #2C1CB4

triadic

#1C58B4 #B41C58 #58B41C

tetradic

#1C58B4 #B41CA4 #B4781C #1CB42C

square

#1C58B4 #B41CA4 #B4781C #1CB42C

split-complementary

#1C58B4 #B42C1C #A4B41C

monochromatic

#0C244A #143E7F #1C58B4 #2F74DF #6497E7

Accessibility & contrast

On white

6.76

#1C58B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#1C58B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C58B4

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C58B4	#FFFFFF	#000000	##FFFFFF
##1C58B4	1.00	6.76	3.10	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B62B7

Deuteranopia (green-blind)

#0055B2

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #1c58b4;
/* rgb */ color: rgb(28, 88, 180);
/* oklch */ color: oklch(47.7% 0.159 259.3);

Tailwind

colors: {
  custom: {
    50: '#7486cb',
    500: '#1c58b4',
    950: '#000000',
  },
}

SCSS

$custom: #1c58b4;
$custom-light: #7486cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c58b4",
  "rgb": {
    "r": 28,
    "g": 88,
    "b": 180
  },
  "hsl": {
    "h": 216.316,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.47729,
    "c": 0.15858,
    "h": 259.3
  },
  "luminance": 0.10522
}

Semantic roles & 50–950 ramp

primary

#1C58B4

secondary

#CCA160

accent

#A738F0

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1C58B4

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

Preview Lab → · Contrast checker → · Palette generator →