#17535D
Closest named color: Deep Teal (#00555A). oklch(40.9% 0.061 210.9), rgb(23, 83, 93).
Aa
White text reads best on this color (8.63:1).
About this color
#17535D is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.061 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.013 away. White text reads best on it, at 8.63:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.43:1 |
| White text | 8.63:1 |
Values
| HEX | #17535D |
| RGB | rgb(23, 83, 93) |
| HSL | hsl(189, 60%, 23%) |
| OKLCH | oklch(40.9% 0.061 210.9) |
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 #17535D | 8.63:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #17535D | 2.43:1 | Fails | Lc 14.6 | Not readable |
| #17535D text on white | 8.63:1 | AAA | Lc 89.4 | Fine for body text |
| #17535D text on black | 2.43:1 | Fails | Lc -12.9 | 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 800.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CBDDE1
oklch(88.5% 0.02 212.6)
-
Step 300
300
#A7C7CE
oklch(80.8% 0.036 212.4)
-
Step 400
400
#76ABB5
oklch(70.8% 0.058 210.6)
-
Step 500
500
#4F96A3
oklch(63.2% 0.074 210.8)
-
Step 600
600
#2E808E
oklch(55.7% 0.08 210.9)
-
Step 700
700
#206C78
oklch(49.1% 0.074 210.2)
-
Step 800
800 (this color)
#17535D
oklch(40.9% 0.061 210.9)
-
Step 900
900
#1F4850
oklch(37.6% 0.048 212.1)
-
Step 950
950
#132A2F
oklch(26.9% 0.03 213.4)
#17535D 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) | #4B505E | 0.058 |
| Deuteranopia (no green cones) | #41495D | 0.052 |
| Tritanopia (no blue cones) | #005756 | 0.022 |
| Achromatopsia (no color) | #4C4C4C | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17535D
#17535D
oklch(40.9% 0.061 210.9)
- #673D36
#673D36
oklch(40.8% 0.061 30.1)
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 #17535D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.013
- Dark Slate Gray #2F4F4F ΔE 0.028
- Dark Teal #014D4E ΔE 0.033
- Dark Blue Green #005249 ΔE 0.037
- Petrol #005F6A ΔE 0.038
- Charcoal #264653 ΔE 0.041
- Dark Grey Blue #29465B ΔE 0.042
- Dark Green Blue #1F6357 ΔE 0.058
Use #17535D 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.