#43718F
Closest named color: Metallic Blue (#4F738E). oklch(52.8% 0.069 238.6), rgb(67, 113, 143).
Aa
White text reads best on this color (5.25:1).
About this color
#43718F is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.069 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.015 away. White text reads best on it, at 5.25:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #43718F |
| RGB | rgb(67, 113, 143) |
| HSL | hsl(204, 36%, 41%) |
| OKLCH | oklch(52.8% 0.069 238.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #43718F | 5.25:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #43718F | 3.99:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #43718F text on white | 5.25:1 | AA | Lc 76.0 | Fine for body text |
| #43718F text on black | 3.99:1 | AA large text | Lc -25.8 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AFC4D3
oklch(80.9% 0.031 238.9)
-
Step 400
400
#84A6BD
oklch(70.8% 0.05 238)
-
Step 500
500
#658FAC
oklch(63% 0.064 239.2)
-
Step 600
600 (this color)
#43718F
oklch(52.8% 0.069 238.6)
-
Step 700
700
#3C6681
oklch(49.1% 0.064 238.2)
-
Step 800
800
#325369
oklch(42.7% 0.053 238.9)
-
Step 900
900
#2C4555
oklch(37.7% 0.041 237.4)
-
Step 950
950
#1A2832
oklch(26.9% 0.027 240.1)
#43718F with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #637090 | 0.039 |
| Deuteranopia (no green cones) | #59688E | 0.035 |
| Tritanopia (no blue cones) | #17797B | 0.056 |
| Achromatopsia (no color) | #6C6C6C | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43718F
#43718F
oklch(52.8% 0.069 238.6)
- #896142
#896142
oklch(52.7% 0.069 58.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #43718F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.015
- Dull Blue #49759C ΔE 0.023
- Muted Blue #3B719F ΔE 0.026
- Cerulean #457B9D ΔE 0.033
- Sea Blue #047495 ΔE 0.035
- Stormy Blue #507B9C ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.039
- Ocean Blue #03719C ΔE 0.040
Use #43718F in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.