#43738F
Closest named color: Metallic Blue (#4F738E). oklch(53.3% 0.068 235.6), rgb(67, 115, 143).
Aa
White text reads best on this color (5.13:1).
About this color
#43738F is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.068 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.013 away. White text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.08:1 |
| White text | 5.13:1 |
Values
| HEX | #43738F |
| RGB | rgb(67, 115, 143) |
| HSL | hsl(202, 36%, 41%) |
| OKLCH | oklch(53.3% 0.068 235.6) |
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 #43738F | 5.13:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #43738F | 4.08:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #43738F text on white | 5.13:1 | AA | Lc 75.3 | Fine for body text |
| #43738F text on black | 4.08:1 | AA large text | Lc -26.4 | 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
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AEC4D2
oklch(80.8% 0.031 235.7)
-
Step 400
400
#83A6BB
oklch(70.6% 0.049 234.7)
-
Step 500
500
#6490AB
oklch(63.2% 0.063 236.1)
-
Step 600
600 (this color)
#43738F
oklch(53.3% 0.068 235.6)
-
Step 700
700
#3B6680
oklch(49% 0.064 236.6)
-
Step 800
800
#315468
oklch(42.8% 0.052 234.9)
-
Step 900
900
#2B4555
oklch(37.6% 0.042 236.5)
-
Step 950
950
#1A2931
oklch(27.1% 0.025 232.2)
#43738F 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) | #667290 | 0.043 |
| Deuteranopia (no green cones) | #5B6A8F | 0.037 |
| Tritanopia (no blue cones) | #167A7C | 0.053 |
| Achromatopsia (no color) | #6D6D6D | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43738F
#43738F
oklch(53.3% 0.068 235.6)
- #8C6245
#8C6245
oklch(53.3% 0.069 55.3)
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 #43738F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.013
- Dull Blue #49759C ΔE 0.022
- Muted Blue #3B719F ΔE 0.029
- Cerulean #457B9D ΔE 0.029
- Stormy Blue #507B9C ΔE 0.033
- Sea Blue #047495 ΔE 0.036
- Ocean #017B92 ΔE 0.038
- Flat Blue #3C73A8 ΔE 0.040
Use #43738F 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.