#436E7F
Closest named color: Metallic Blue (#4F738E). oklch(51.4% 0.055 225.2), rgb(67, 110, 127).
Aa
White text reads best on this color (5.56:1).
About this color
#436E7F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 51%, its chroma 0.055 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.031 away. White text reads best on it, at 5.56:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.77:1 |
| White text | 5.56:1 |
Values
| HEX | #436E7F |
| RGB | rgb(67, 110, 127) |
| HSL | hsl(197, 31%, 38%) |
| OKLCH | oklch(51.4% 0.055 225.2) |
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 #436E7F | 5.56:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #436E7F | 3.77:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #436E7F text on white | 5.56:1 | AA | Lc 77.7 | Fine for body text |
| #436E7F text on black | 3.77:1 | AA large text | Lc -24.1 | 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
#CFDBE0
oklch(88.4% 0.015 224.5)
-
Step 300
300
#AFC5CE
oklch(81% 0.027 224.3)
-
Step 400
400
#85A7B5
oklch(70.8% 0.042 224.9)
-
Step 500
500
#6591A2
oklch(63.1% 0.054 224)
-
Step 600
600
#4C7B8D
oklch(55.6% 0.058 224.4)
-
Step 700
700 (this color)
#436E7F
oklch(51.4% 0.055 225.2)
-
Step 800
800
#325462
oklch(42.6% 0.046 226.2)
-
Step 900
900
#2D4650
oklch(37.8% 0.035 225)
-
Step 950
950
#1A292F
oklch(27% 0.023 224.8)
#436E7F 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) | #656C80 | 0.043 |
| Deuteranopia (no green cones) | #5C657F | 0.039 |
| Tritanopia (no blue cones) | #277373 | 0.038 |
| Achromatopsia (no color) | #686868 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #436E7F
#436E7F
oklch(51.4% 0.055 225.2)
- #825D4D
#825D4D
oklch(51.3% 0.055 44.4)
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 #436E7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.031
- Slate #516572 ΔE 0.031
- Deep Aqua #08787F ΔE 0.043
- Sea Blue #047495 ΔE 0.045
- Denim #3B638C ΔE 0.046
- Dull Blue #49759C ΔE 0.048
- Deep Turquoise #017374 ΔE 0.048
- Ocean #017B92 ΔE 0.049
Use #436E7F 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.