#185B53
Closest named color: Dark Green Blue (#1F6357). oklch(42.8% 0.067 183.6), rgb(24, 91, 83).
Aa
White text reads best on this color (7.89:1).
About this color
#185B53 is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.067 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.027 away. White text reads best on it, at 7.89:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.66:1 |
| White text | 7.89:1 |
Values
| HEX | #185B53 |
| RGB | rgb(24, 91, 83) |
| HSL | hsl(173, 58%, 23%) |
| OKLCH | oklch(42.8% 0.067 183.6) |
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 #185B53 | 7.89:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #185B53 | 2.66:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #185B53 text on white | 7.89:1 | AAA | Lc 87.1 | Fine for body text |
| #185B53 text on black | 2.66:1 | Fails | Lc -15.0 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEA
oklch(93.5% 0.011 182.9)
-
Step 200
200
#CADEDA
oklch(88.5% 0.022 182.5)
-
Step 300
300
#A6C9C3
oklch(80.9% 0.038 183.8)
-
Step 400
400
#73AEA5
oklch(70.8% 0.063 183.9)
-
Step 500
500
#4B998E
oklch(63% 0.079 183.4)
-
Step 600
600
#278479
oklch(55.7% 0.087 183.7)
-
Step 700
700
#176F65
oklch(49% 0.08 183.5)
-
Step 800
800 (this color)
#185B53
oklch(42.8% 0.067 183.6)
-
Step 900
900
#1C4B44
oklch(37.8% 0.052 182.2)
-
Step 950
950
#122C28
oklch(27.1% 0.033 182.6)
#185B53 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) | #565553 | 0.071 |
| Deuteranopia (no green cones) | #4D4E54 | 0.068 |
| Tritanopia (no blue cones) | #005D58 | 0.011 |
| Achromatopsia (no color) | #515151 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #185B53
#185B53
oklch(42.8% 0.067 183.6)
- #6E3F4B
#6E3F4B
oklch(42.8% 0.067 3.8)
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 #185B53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.027
- Deep Teal #00555A ΔE 0.029
- Dark Blue Green #005249 ΔE 0.035
- Petrol #005F6A ΔE 0.036
- Dark Slate Gray #2F4F4F ΔE 0.040
- Dark Teal #014D4E ΔE 0.049
- Dark Aqua #05696B ΔE 0.050
- Spruce #0A5F38 ΔE 0.050
Use #185B53 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.