#174B4D
Closest named color: Dark Teal (#014D4E). oklch(38% 0.054 198.8), rgb(23, 75, 77).
Aa
White text reads best on this color (9.76:1).
About this color
#174B4D is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.054 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.011 away. White text reads best on it, at 9.76:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.15:1 |
| White text | 9.76:1 |
Values
| HEX | #174B4D |
| RGB | rgb(23, 75, 77) |
| HSL | hsl(182, 54%, 20%) |
| OKLCH | oklch(38% 0.054 198.8) |
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 #174B4D | 9.76:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #174B4D | 2.15:1 | Fails | Lc 11.5 | Not readable |
| #174B4D text on white | 9.76:1 | AAA | Lc 92.4 | Preferred for body text |
| #174B4D text on black | 2.15:1 | Fails | Lc -10.0 | 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
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C9DEDF
oklch(88.5% 0.022 200.2)
-
Step 300
300
#A3C9CA
oklch(80.9% 0.04 198.4)
-
Step 400
400
#6EADB0
oklch(70.6% 0.065 199.6)
-
Step 500
500
#42999C
oklch(63.2% 0.083 198.4)
-
Step 600
600
#168387
oklch(55.6% 0.09 198.8)
-
Step 700
700
#006F72
oklch(49.2% 0.084 198.1)
-
Step 800
800
#0B5A5D
oklch(42.6% 0.069 199)
-
Step 900
900 (this color)
#174B4D
oklch(38% 0.054 198.8)
-
Step 950
950
#0F2C2D
oklch(27.2% 0.035 198.4)
#174B4D 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) | #45474D | 0.055 |
| Deuteranopia (no green cones) | #3D414D | 0.052 |
| Tritanopia (no blue cones) | #004E4B | 0.015 |
| Achromatopsia (no color) | #444444 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174B4D
#174B4D
oklch(38% 0.054 198.8)
- #5C3637
#5C3637
oklch(38% 0.055 18.3)
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 #174B4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.011
- Charcoal #264653 ΔE 0.026
- Dark Blue Green #005249 ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.028
- Deep Teal #00555A ΔE 0.033
- Dark Grey Blue #29465B ΔE 0.038
- Charcoal Grey #3C4142 ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.054
Use #174B4D 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.