#174F4A
Closest named color: Dark Blue Green (#005249). oklch(39% 0.058 186.7), rgb(23, 79, 74).
Aa
White text reads best on this color (9.31:1).
About this color
#174F4A is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.058 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.014 away. White text reads best on it, at 9.31:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.25:1 |
| White text | 9.31:1 |
Values
| HEX | #174F4A |
| RGB | rgb(23, 79, 74) |
| HSL | hsl(175, 55%, 20%) |
| OKLCH | oklch(39% 0.058 186.7) |
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 #174F4A | 9.31:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #174F4A | 2.25:1 | Fails | Lc 12.7 | Not readable |
| #174F4A text on white | 9.31:1 | AAA | Lc 91.3 | Preferred for body text |
| #174F4A text on black | 2.25:1 | Fails | Lc -11.1 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEB
oklch(93.7% 0.013 185.1)
-
Step 200
200
#C8DFDC
oklch(88.6% 0.025 187.3)
-
Step 300
300
#A2CAC5
oklch(80.9% 0.043 187)
-
Step 400
400
#6CAFA7
oklch(70.7% 0.069 186.1)
-
Step 500
500
#3D9B92
oklch(63.1% 0.089 186.5)
-
Step 600
600
#04857C
oklch(55.5% 0.096 186.5)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#015C55
oklch(42.7% 0.075 185.9)
-
Step 900
900 (this color)
#174F4A
oklch(39% 0.058 186.7)
-
Step 950
950
#0D2C29
oklch(26.9% 0.037 186.6)
#174F4A 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) | #4B4A4A | 0.062 |
| Deuteranopia (no green cones) | #42444B | 0.058 |
| Tritanopia (no blue cones) | #00514D | 0.011 |
| Achromatopsia (no color) | #474747 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174F4A
#174F4A
oklch(39% 0.058 186.7)
- #5F3840
#5F3840
oklch(39% 0.056 6.7)
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 #174F4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.014
- Dark Teal #014D4E ΔE 0.015
- Dark Slate Gray #2F4F4F ΔE 0.025
- Deep Teal #00555A ΔE 0.028
- Charcoal #264653 ΔE 0.040
- Dark Grey Blue #29465B ΔE 0.051
- Charcoal Grey #3C4142 ΔE 0.055
- Evergreen #05472A ΔE 0.056
Use #174F4A 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.