#436559
Closest named color: Dark Green Blue (#1F6357). oklch(47.7% 0.044 170.3), rgb(67, 101, 89).
Aa
White text reads best on this color (6.47:1).
About this color
#436559 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 48%, its chroma 0.044 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.036 away. White text reads best on it, at 6.47:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.24:1 |
| White text | 6.47:1 |
Values
| HEX | #436559 |
| RGB | rgb(67, 101, 89) |
| HSL | hsl(159, 20%, 33%) |
| OKLCH | oklch(47.7% 0.044 170.3) |
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 #436559 | 6.47:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #436559 | 3.24:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #436559 text on white | 6.47:1 | AA | Lc 82.1 | Fine for body text |
| #436559 text on black | 3.24:1 | AA large text | Lc -19.8 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBE9
oklch(93.6% 0.006 170.4)
-
Step 200
200
#D2DCD8
oklch(88.6% 0.012 170.2)
-
Step 300
300
#B4C5BE
oklch(80.8% 0.021 169.2)
-
Step 400
400
#8CA89D
oklch(70.7% 0.035 169.5)
-
Step 500
500
#6F9286
oklch(63% 0.043 171.8)
-
Step 600
600
#577D6F
oklch(55.7% 0.048 169.6)
-
Step 700
700 (this color)
#436559
oklch(47.7% 0.044 170.3)
-
Step 800
800
#3B564C
oklch(42.8% 0.037 169.6)
-
Step 900
900
#32473F
oklch(37.8% 0.03 169.2)
-
Step 950
950
#1E2925
oklch(26.9% 0.017 170.8)
#436559 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) | #636158 | 0.045 |
| Deuteranopia (no green cones) | #5D5C5A | 0.044 |
| Tritanopia (no blue cones) | #3A6561 | 0.015 |
| Achromatopsia (no color) | #5E5E5E | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #436559
#436559
oklch(47.7% 0.044 170.3)
- #705360
#705360
oklch(47.7% 0.043 350.2)
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 #436559, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.036
- Dark Aqua #05696B ΔE 0.045
- Slate #516572 ΔE 0.047
- Dark Aquamarine #017371 ΔE 0.054
- Deep Turquoise #017374 ΔE 0.056
- Petrol #005F6A ΔE 0.060
- Dim Gray #696969 ΔE 0.062
- Pine #2B5D34 ΔE 0.066
Use #436559 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.