#3A5BB3#3A5BB3

#3A5BB3 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.4% C 0.145 H 265.8°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#3A5BB3
RGB	rgb(58, 91, 179)
HSL	hsl(224, 51%, 46%)
HSV	hsv(224, 68%, 70%)
CMYK	cmyk(67.6%, 49.2%, 0%, 29.8%)
CIE-LAB	lab(40.63, 17.55, -50.41)
CIE-LCH	lch(40.63, 53.38, 289.20°)
OKLab	oklab(49.44% -0.0105 -0.1445)
OKLCH	oklch(49.44% 0.145 265.8)
XYZ	xyz(13.6199, 11.6351, 44.1671)
Luminance	0.1164 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A5BB3 #B3923A

analogous

#3A98B3 #3A5BB3 #553AB3

triadic

#3A5BB3 #B33A5B #5BB33A

tetradic

#3A5BB3 #B33A98 #B3923A #3AB355

square

#3A5BB3 #B33A98 #B3923A #3AB355

split-complementary

#3A5BB3 #B3553A #98B33A

monochromatic

#1C2C57 #2B4485 #3A5BB3 #5F7DCB #8DA2DA

Accessibility & contrast

On white

6.31

#3A5BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#3A5BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A5BB3

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A5BB3	#FFFFFF	#000000	##FFFFFF
##3A5BB3	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B66B6

Deuteranopia (green-blind)

#095BB1

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3a5bb3;
/* rgb */ color: rgb(58, 91, 179);
/* oklch */ color: oklch(49.4% 0.145 265.8);

Tailwind

colors: {
  custom: {
    50: '#7e88ca',
    500: '#3a5bb3',
    950: '#000000',
  },
}

SCSS

$custom: #3a5bb3;
$custom-light: #7e88ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3a5bb3",
  "rgb": {
    "r": 58,
    "g": 91,
    "b": 179
  },
  "hsl": {
    "h": 223.636,
    "s": 51.055,
    "l": 46.471
  },
  "oklch": {
    "l": 0.49441,
    "c": 0.14489,
    "h": 265.8
  },
  "luminance": 0.11636
}

Semantic roles & 50–950 ramp

primary

#3A5BB3

secondary

#C5B384

accent

#B44DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3A5BB3

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

Preview Lab → · Contrast checker → · Palette generator →