#174B43
Closest named color: Dark Teal (#014D4E). oklch(37.6% 0.056 181.1), rgb(23, 75, 67).
Aa
White text reads best on this color (9.88:1).
About this color
#174B43 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.056 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.019 away. White text reads best on it, at 9.88:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.12:1 |
| White text | 9.88:1 |
Values
| HEX | #174B43 |
| RGB | rgb(23, 75, 67) |
| HSL | hsl(171, 53%, 19%) |
| OKLCH | oklch(37.6% 0.056 181.1) |
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 #174B43 | 9.88:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #174B43 | 2.12:1 | Fails | Lc 11.2 | Not readable |
| #174B43 text on white | 9.88:1 | AAA | Lc 92.7 | Preferred for body text |
| #174B43 text on black | 2.12:1 | Fails | Lc -9.7 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2EDEA
oklch(93.7% 0.012 178)
-
Step 200
200
#C9DEDA
oklch(88.4% 0.023 183.1)
-
Step 300
300
#A4CAC2
oklch(80.9% 0.042 181)
-
Step 400
400
#70AFA3
oklch(70.8% 0.067 180.9)
-
Step 500
500
#449B8C
oklch(63.2% 0.087 180.4)
-
Step 600
600
#1A8576
oklch(55.6% 0.094 180.7)
-
Step 700
700
#057064
oklch(49% 0.087 182)
-
Step 800
800
#0E5C51
oklch(42.8% 0.073 180.5)
-
Step 900
900 (this color)
#174B43
oklch(37.6% 0.056 181.1)
-
Step 950
950
#102C27
oklch(27% 0.035 180.2)
#174B43 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) | #474643 | 0.059 |
| Deuteranopia (no green cones) | #404144 | 0.057 |
| Tritanopia (no blue cones) | #004C49 | 0.013 |
| Achromatopsia (no color) | #434343 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174B43
#174B43
oklch(37.6% 0.056 181.1)
- #5A343F
#5A343F
oklch(37.5% 0.057 1.5)
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 #174B43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.019
- Dark Blue Green #005249 ΔE 0.023
- Dark Slate Gray #2F4F4F ΔE 0.035
- Charcoal #264653 ΔE 0.040
- Deep Teal #00555A ΔE 0.042
- Evergreen #05472A ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.054
Use #174B43 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.