#173235
Closest named color: Gunmetal (#293241). oklch(29.7% 0.033 204.9), rgb(23, 50, 53).
Aa
White text reads best on this color (13.60:1).
About this color
#173235 is a dark, muted teal or cyan. In OKLCH its lightness is 30%, its chroma 0.033 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.035 away. White text reads best on it, at 13.60:1.
| Hue family | Teals and cyans |
| Lightness | dark (30%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.54:1 |
| White text | 13.60:1 |
Values
| HEX | #173235 |
| RGB | rgb(23, 50, 53) |
| HSL | hsl(186, 39%, 15%) |
| OKLCH | oklch(29.7% 0.033 204.9) |
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 #173235 | 13.60:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #173235 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #173235 text on white | 13.60:1 | AAA | Lc 100.0 | Preferred for body text |
| #173235 text on black | 1.54:1 | Fails | Lc 0.0 | Not readable |
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 950.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A4C8CD
oklch(80.8% 0.039 206.8)
-
Step 400
400
#70ACB3
oklch(70.6% 0.063 205.2)
-
Step 500
500
#4598A1
oklch(63.2% 0.081 204.9)
-
Step 600
600
#1D828C
oklch(55.7% 0.088 205.1)
-
Step 700
700
#0A6E77
oklch(49.2% 0.082 205)
-
Step 800
800
#105960
oklch(42.6% 0.067 204.9)
-
Step 900
900
#184A4F
oklch(37.8% 0.053 204.5)
-
Step 950
950 (this color)
#173235
oklch(29.7% 0.033 204.9)
#173235 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) | #2E3035 | 0.033 |
| Deuteranopia (no green cones) | #292C35 | 0.031 |
| Tritanopia (no blue cones) | #063433 | 0.016 |
| Achromatopsia (no color) | #2E2E2E | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #173235
#173235
oklch(29.7% 0.033 204.9)
- #3C2725
#3C2725
oklch(29.8% 0.032 25.2)
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 #173235, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.035
- Midnight Green #073B4C ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.044
- Jet #212529 ΔE 0.044
- Oxford Blue #1B263B ΔE 0.047
- Dark #1B2431 ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.049
- Onyx #343A40 ΔE 0.054
Use #173235 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.