#43697C
Closest named color: Slate (#516572). oklch(50% 0.053 230.9), rgb(67, 105, 124).
Aa
White text reads best on this color (5.91:1).
About this color
#43697C is a medium-dark, muted blue. In OKLCH its lightness is 50%, its chroma 0.053 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.022 away. White text reads best on it, at 5.91:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.55:1 |
| White text | 5.91:1 |
Values
| HEX | #43697C |
| RGB | rgb(67, 105, 124) |
| HSL | hsl(200, 30%, 37%) |
| OKLCH | oklch(50% 0.053 230.9) |
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 #43697C | 5.91:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #43697C | 3.55:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #43697C text on white | 5.91:1 | AA | Lc 79.5 | Fine for body text |
| #43697C text on black | 3.55:1 | AA large text | Lc -22.3 | 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 700.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D0DBE1
oklch(88.5% 0.015 231.2)
-
Step 300
300
#B1C4CE
oklch(80.9% 0.025 230.5)
-
Step 400
400
#87A6B6
oklch(70.7% 0.041 230.5)
-
Step 500
500
#6990A4
oklch(63.2% 0.053 230.9)
-
Step 600
600
#507A8F
oklch(55.7% 0.057 230.8)
-
Step 700
700 (this color)
#43697C
oklch(50% 0.053 230.9)
-
Step 800
800
#355463
oklch(42.8% 0.044 230)
-
Step 900
900
#2F4550
oklch(37.7% 0.033 230.4)
-
Step 950
950
#1C282F
oklch(26.9% 0.021 234.2)
#43697C 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) | #60687D | 0.038 |
| Deuteranopia (no green cones) | #57617C | 0.033 |
| Tritanopia (no blue cones) | #2A6E6F | 0.038 |
| Achromatopsia (no color) | #646464 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43697C
#43697C
oklch(50% 0.053 230.9)
- #7C5B48
#7C5B48
oklch(50.1% 0.052 51.1)
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 #43697C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.022
- Denim #3B638C ΔE 0.037
- Metallic Blue #4F738E ΔE 0.041
- YInMn Blue #415A77 ΔE 0.045
- Sea Blue #047495 ΔE 0.051
- Deep Turquoise #017374 ΔE 0.052
- Deep Aqua #08787F ΔE 0.053
- Dark Aqua #05696B ΔE 0.053
Use #43697C 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.