#175154
Closest named color: Deep Teal (#00555A). oklch(40% 0.058 200.1), rgb(23, 81, 84).
Aa
White text reads best on this color (8.96:1).
About this color
#175154 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.058 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.015 away. White text reads best on it, at 8.96:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.34:1 |
| White text | 8.96:1 |
Values
| HEX | #175154 |
| RGB | rgb(23, 81, 84) |
| HSL | hsl(183, 57%, 21%) |
| OKLCH | oklch(40% 0.058 200.1) |
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 #175154 | 8.96:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #175154 | 2.34:1 | Fails | Lc 13.6 | Not readable |
| #175154 text on white | 8.96:1 | AAA | Lc 90.3 | Preferred for body text |
| #175154 text on black | 2.34:1 | Fails | Lc -12.0 | 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 900.
-
Step 50
50
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1EDED
oklch(93.7% 0.013 196.9)
-
Step 200
200
#C8DEDF
oklch(88.5% 0.024 200.1)
-
Step 300
300
#A0CACC
oklch(81% 0.044 199.9)
-
Step 400
400
#69AEB2
oklch(70.7% 0.07 200.5)
-
Step 500
500
#389A9F
oklch(63.2% 0.09 199.9)
-
Step 600
600
#008489
oklch(55.7% 0.095 199.5)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900 (this color)
#175154
oklch(40% 0.058 200.1)
-
Step 950
950
#0C2C2E
oklch(27.1% 0.037 201)
#175154 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) | #4B4D54 | 0.060 |
| Deuteranopia (no green cones) | #424654 | 0.056 |
| Tritanopia (no blue cones) | #005452 | 0.014 |
| Achromatopsia (no color) | #494949 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175154
#175154
oklch(40% 0.058 200.1)
- #633A3A
#633A3A
oklch(39.8% 0.058 20)
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 #175154, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.015
- Dark Teal #014D4E ΔE 0.020
- Dark Slate Gray #2F4F4F ΔE 0.021
- Dark Blue Green #005249 ΔE 0.024
- Charcoal #264653 ΔE 0.037
- Dark Grey Blue #29465B ΔE 0.043
- Petrol #005F6A ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.059
Use #175154 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.