#43677C
Closest named color: Slate (#516572). oklch(49.5% 0.053 234.9), rgb(67, 103, 124).
Aa
White text reads best on this color (6.05:1).
About this color
#43677C is a medium-dark, muted blue. In OKLCH its lightness is 50%, its chroma 0.053 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.021 away. White text reads best on it, at 6.05:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.46:1 |
| White text | 6.05:1 |
Values
| HEX | #43677C |
| RGB | rgb(67, 103, 124) |
| HSL | hsl(202, 30%, 37%) |
| OKLCH | oklch(49.5% 0.053 234.9) |
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 #43677C | 6.05:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #43677C | 3.46:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #43677C text on white | 6.05:1 | AA | Lc 80.2 | Fine for body text |
| #43677C text on black | 3.46:1 | AA large text | Lc -21.7 | 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
#D1DBE1
oklch(88.6% 0.014 233.8)
-
Step 300
300
#B1C4CF
oklch(80.9% 0.026 233.1)
-
Step 400
400
#88A5B7
oklch(70.6% 0.042 235.4)
-
Step 500
500
#6A8FA5
oklch(63.1% 0.053 234.8)
-
Step 600
600
#517990
oklch(55.6% 0.057 234.4)
-
Step 700
700 (this color)
#43677C
oklch(49.5% 0.053 234.9)
-
Step 800
800
#375364
oklch(42.7% 0.044 235.9)
-
Step 900
900
#2F4551
oklch(37.7% 0.034 232.7)
-
Step 950
950
#1C2830
oklch(26.9% 0.022 237.9)
#43677C 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) | #5D667D | 0.034 |
| Deuteranopia (no green cones) | #55607C | 0.029 |
| Tritanopia (no blue cones) | #2B6D6E | 0.041 |
| Achromatopsia (no color) | #636363 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43677C
#43677C
oklch(49.5% 0.053 234.9)
- #7A5A45
#7A5A45
oklch(49.5% 0.053 54.4)
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 #43677C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.021
- Denim #3B638C ΔE 0.033
- YInMn Blue #415A77 ΔE 0.039
- Metallic Blue #4F738E ΔE 0.045
- Dusty Grape #545775 ΔE 0.049
- Dusky Blue #475F94 ΔE 0.052
- Sea Blue #047495 ΔE 0.054
- Dark Aqua #05696B ΔE 0.054
Use #43677C 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.