#174355
Closest named color: Charcoal (#264653). oklch(36.1% 0.057 228.5), rgb(23, 67, 85).
Aa
White text reads best on this color (10.65:1).
About this color
#174355 is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.057 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.019 away. White text reads best on it, at 10.65:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.97:1 |
| White text | 10.65:1 |
Values
| HEX | #174355 |
| RGB | rgb(23, 67, 85) |
| HSL | hsl(197, 57%, 21%) |
| OKLCH | oklch(36.1% 0.057 228.5) |
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 #174355 | 10.65:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #174355 | 1.97:1 | Fails | Lc 9.4 | Not readable |
| #174355 text on white | 10.65:1 | AAA | Lc 94.5 | Preferred for body text |
| #174355 text on black | 1.97:1 | Fails | Lc -8.1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CADDE6
oklch(88.6% 0.024 227.8)
-
Step 300
300
#A5C7D7
oklch(81% 0.043 228)
-
Step 400
400
#73A9C2
oklch(70.6% 0.067 228.7)
-
Step 500
500
#4A94B3
oklch(63.2% 0.087 227.9)
-
Step 600
600
#277D9F
oklch(55.5% 0.095 228.9)
-
Step 700
700
#186A88
oklch(49.2% 0.088 228.2)
-
Step 800
800
#18566E
oklch(42.6% 0.073 228.4)
-
Step 900
900 (this color)
#174355
oklch(36.1% 0.057 228.5)
-
Step 950
950
#122A34
oklch(27.1% 0.035 227.4)
#174355 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) | #3A4256 | 0.041 |
| Deuteranopia (no green cones) | #313B55 | 0.037 |
| Tritanopia (no blue cones) | #004849 | 0.033 |
| Achromatopsia (no color) | #3E3E3E | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174355
#174355
oklch(36.1% 0.057 228.5)
- #563422
#563422
oklch(36.2% 0.057 48.2)
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 #174355, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.019
- Dark Grey Blue #29465B ΔE 0.024
- Dark Blue Grey #1F3B4D ΔE 0.026
- Midnight Green #073B4C ΔE 0.032
- Dark Teal #014D4E ΔE 0.040
- Prussian Blue #1D3557 ΔE 0.047
- Onyx #343A40 ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.051
Use #174355 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.