#2F437C#2F437C
#2F437C is a dark, moderate blue. Relative luminance 0.061; OKLCH L 39.7% C 0.099 H 267.3°. Best body text is #FFFFFF at 9.48:1 contrast (WCAG AA passes).
Color values
| HEX | #2F437C |
|---|---|
| RGB | rgb(47, 67, 124) |
| HSL | hsl(224, 45%, 34%) |
| HSV | hsv(224, 62%, 49%) |
| CMYK | cmyk(62.1%, 46%, 0%, 51.4%) |
| CIE-LAB | lab(29.60, 11.20, -34.84) |
| CIE-LCH | lch(29.60, 36.60, 287.81°) |
| OKLab | oklab(39.7% -0.0048 -0.0993) |
| OKLCH | oklch(39.7% 0.099 267.3) |
| XYZ | xyz(6.8163, 6.0733, 19.8779) |
| Luminance | 0.0607 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt (survey)
#1E488F
ΔE00 4.23
Darkish Blue
#014182
ΔE00 4.90
Twilight Blue
#0A437A
ΔE00 5.24
Marine Blue
#01386A
ΔE00 6.19
Twilight
#4E518B
ΔE00 6.72
Prussian Blue
#004577
ΔE00 6.73
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2F437C #7C682F
analogous
#2F697C #2F437C #412F7C
triadic
#2F437C #7C2F43 #437C2F
tetradic
#2F437C #7C2F69 #7C682F #2F7C41
square
#2F437C #7C2F69 #7C682F #2F7C41
split-complementary
#2F437C #7C412F #697C2F
monochromatic
#0D1323 #1E2B50 #2F437C #405BA8 #627BC3
Accessibility & contrast
On white
9.48
#2F437C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.21
#2F437C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2F437C
9.48:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2F437C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2F437C | 1.00 | 9.48 | 2.21 | 9.48 |
| #FFFFFF | 9.48 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.21 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.48 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#29497E
Deuteranopia (green-blind)
#1E427B
Tritanopia (blue-blind)
#005059
Achromatopsia (no color)
#464646
Design tokens & code
CSS
--color: #2f437c; /* rgb */ color: rgb(47, 67, 124); /* oklch */ color: oklch(39.7% 0.099 267.3);
Tailwind
colors: {
custom: {
50: '#6f76a2',
500: '#2f437c',
950: '#000000',
},
}SCSS
$custom: #2f437c; $custom-light: #6f76a2; $custom-dark: #000000;
JSON
{
"hex": "#2f437c",
"rgb": {
"r": 47,
"g": 67,
"b": 124
},
"hsl": {
"h": 224.416,
"s": 45.029,
"l": 33.529
},
"oklch": {
"l": 0.39703,
"c": 0.09943,
"h": 267.3
},
"luminance": 0.06074
}Semantic roles & 50–950 ramp
primary
#2F437C
secondary
#AA965C
accent
#B353D5
background
#F7F7FA
surface
#EDEDF3
border
#C8C8CD
text
#08080F
muted
#7B7B7F