#436F85
Closest named color: Metallic Blue (#4F738E). oklch(51.9% 0.06 231.2), rgb(67, 111, 133).
Aa
White text reads best on this color (5.45:1).
About this color
#436F85 is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.060 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.023 away. White text reads best on it, at 5.45:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.85:1 |
| White text | 5.45:1 |
Values
| HEX | #436F85 |
| RGB | rgb(67, 111, 133) |
| HSL | hsl(200, 33%, 39%) |
| OKLCH | oklch(51.9% 0.06 231.2) |
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 #436F85 | 5.45:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #436F85 | 3.85:1 | AA large text | Lc 27.0 | Dividers and decoration only |
| #436F85 text on white | 5.45:1 | AA | Lc 77.1 | Fine for body text |
| #436F85 text on black | 3.85:1 | AA large text | Lc -24.6 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#CFDBE2
oklch(88.4% 0.016 233)
-
Step 300
300
#AFC4D0
oklch(80.8% 0.029 232.8)
-
Step 400
400
#84A6B9
oklch(70.6% 0.047 232.8)
-
Step 500
500
#6490A7
oklch(63% 0.059 231.7)
-
Step 600
600
#4A7A92
oklch(55.5% 0.064 231.2)
-
Step 700
700 (this color)
#436F85
oklch(51.9% 0.06 231.2)
-
Step 800
800
#315465
oklch(42.7% 0.049 230.5)
-
Step 900
900
#2C4553
oklch(37.6% 0.039 233.8)
-
Step 950
950
#1A2930
oklch(27.1% 0.024 228.7)
#436F85 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) | #646E86 | 0.041 |
| Deuteranopia (no green cones) | #5B6685 | 0.038 |
| Tritanopia (no blue cones) | #227576 | 0.044 |
| Achromatopsia (no color) | #696969 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #436F85
#436F85
oklch(51.9% 0.06 231.2)
- #855F49
#855F49
oklch(52% 0.06 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 #436F85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.023
- Slate #516572 ΔE 0.037
- Dull Blue #49759C ΔE 0.038
- Sea Blue #047495 ΔE 0.040
- Muted Blue #3B719F ΔE 0.041
- Denim #3B638C ΔE 0.043
- Ocean #017B92 ΔE 0.045
- Deep Aqua #08787F ΔE 0.046
Use #436F85 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.