#18645A
Closest named color: Dark Green Blue (#1F6357). oklch(45.6% 0.073 182.2), rgb(24, 100, 90).
Aa
White text reads best on this color (6.97:1).
About this color
#18645A is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 46%, its chroma 0.073 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.005 away. White text reads best on it, at 6.97:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.00:1 |
| White text | 6.97:1 |
Values
| HEX | #18645A |
| RGB | rgb(24, 100, 90) |
| HSL | hsl(172, 61%, 24%) |
| OKLCH | oklch(45.6% 0.073 182.2) |
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 #18645A | 6.97:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #18645A | 3.00:1 | AA large text | Lc 20.2 | Dividers and decoration only |
| #18645A text on white | 6.97:1 | AA | Lc 83.8 | Fine for body text |
| #18645A text on black | 3.00:1 | AA large text | Lc -18.1 | 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 800.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C9DFDA
oklch(88.6% 0.024 180.6)
-
Step 300
300
#A3CAC3
oklch(80.9% 0.043 183.1)
-
Step 400
400
#6EAFA4
oklch(70.7% 0.069 182.4)
-
Step 500
500
#429B8E
oklch(63.2% 0.087 182.4)
-
Step 600
600
#148578
oklch(55.6% 0.095 182.6)
-
Step 700
700
#007165
oklch(49.2% 0.088 182.2)
-
Step 800
800 (this color)
#18645A
oklch(45.6% 0.073 182.2)
-
Step 900
900
#164B44
oklch(37.6% 0.056 182.9)
-
Step 950
950
#0F2C28
oklch(27% 0.036 183.4)
#18645A 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) | #5F5E5A | 0.078 |
| Deuteranopia (no green cones) | #54565B | 0.073 |
| Tritanopia (no blue cones) | #006661 | 0.012 |
| Achromatopsia (no color) | #595959 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18645A
#18645A
oklch(45.6% 0.073 182.2)
- #784553
#784553
oklch(45.5% 0.072 2.7)
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 #18645A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.005
- Dark Aqua #05696B ΔE 0.027
- Petrol #005F6A ΔE 0.036
- Dark Aquamarine #017371 ΔE 0.050
- Deep Teal #00555A ΔE 0.053
- Deep Turquoise #017374 ΔE 0.053
- Spruce #0A5F38 ΔE 0.053
- Pine #2B5D34 ΔE 0.054
Use #18645A 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.