#174A43
Closest named color: Dark Teal (#014D4E). oklch(37.3% 0.055 182.6), rgb(23, 74, 67).
Aa
White text reads best on this color (10.01:1).
About this color
#174A43 is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.055 and its hue 183°. 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 10.01:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.09:1 |
| White text | 10.01:1 |
Values
| HEX | #174A43 |
| RGB | rgb(23, 74, 67) |
| HSL | hsl(172, 53%, 19%) |
| OKLCH | oklch(37.3% 0.055 182.6) |
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 #174A43 | 10.01:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #174A43 | 2.09:1 | Fails | Lc 10.9 | Not readable |
| #174A43 text on white | 10.01:1 | AAA | Lc 93.0 | Preferred for body text |
| #174A43 text on black | 2.09:1 | Fails | Lc -9.5 | 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
#CADEDA
oklch(88.5% 0.022 182.5)
-
Step 300
300
#A4CAC3
oklch(80.9% 0.042 182.8)
-
Step 400
400
#70AEA4
oklch(70.6% 0.066 183.1)
-
Step 500
500
#459A8E
oklch(63% 0.084 183)
-
Step 600
600
#1D8578
oklch(55.7% 0.092 182.3)
-
Step 700
700
#0A7065
oklch(49.1% 0.085 182.9)
-
Step 800
800
#105B52
oklch(42.6% 0.071 182.7)
-
Step 900
900 (this color)
#174A43
oklch(37.3% 0.055 182.6)
-
Step 950
950
#102C28
oklch(27% 0.035 183.1)
#174A43 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) | #464643 | 0.058 |
| Deuteranopia (no green cones) | #3F4044 | 0.056 |
| Tritanopia (no blue cones) | #004C48 | 0.012 |
| Achromatopsia (no color) | #424242 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174A43
#174A43
oklch(37.3% 0.055 182.6)
- #59343E
#59343E
oklch(37.4% 0.055 2.6)
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 #174A43, 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 0.026
- Dark Slate Gray #2F4F4F ΔE 0.036
- Charcoal #264653 ΔE 0.038
- Evergreen #05472A ΔE 0.044
- Deep Teal #00555A ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.052
Use #174A43 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.