#175456
Closest named color: Deep Teal (#00555A). oklch(40.9% 0.06 198.2), rgb(23, 84, 86).
Aa
White text reads best on this color (8.61:1).
About this color
#175456 is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.060 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.010 away. White text reads best on it, at 8.61:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.43:1 |
| White text | 8.61:1 |
Values
| HEX | #175456 |
| RGB | rgb(23, 84, 86) |
| HSL | hsl(182, 58%, 21%) |
| OKLCH | oklch(40.9% 0.06 198.2) |
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 #175456 | 8.61:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #175456 | 2.43:1 | Fails | Lc 14.7 | Not readable |
| #175456 text on white | 8.61:1 | AAA | Lc 89.3 | Fine for body text |
| #175456 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDDDE
oklch(88.4% 0.019 200.8)
-
Step 300
300
#A7C8C9
oklch(80.9% 0.035 198.7)
-
Step 400
400
#76ACAD
oklch(70.7% 0.057 197.4)
-
Step 500
500
#4F9799
oklch(63.1% 0.072 197.9)
-
Step 600
600
#2E8184
oklch(55.5% 0.078 198.5)
-
Step 700
700
#206D70
oklch(49.1% 0.073 198.8)
-
Step 800
800 (this color)
#175456
oklch(40.9% 0.06 198.2)
-
Step 900
900
#1F494B
oklch(37.7% 0.047 199.5)
-
Step 950
950
#132B2C
oklch(27% 0.03 199.1)
#175456 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) | #4E5056 | 0.062 |
| Deuteranopia (no green cones) | #444956 | 0.057 |
| Tritanopia (no blue cones) | #005754 | 0.014 |
| Achromatopsia (no color) | #4C4C4C | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175456
#175456
oklch(40.9% 0.06 198.2)
- #673C3D
#673C3D
oklch(40.8% 0.061 18.6)
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 #175456, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.010
- Dark Slate Gray #2F4F4F ΔE 0.023
- Dark Blue Green #005249 ΔE 0.026
- Dark Teal #014D4E ΔE 0.028
- Petrol #005F6A ΔE 0.041
- Charcoal #264653 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.050
- Dark Green Blue #1F6357 ΔE 0.051
Use #175456 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.