#174755
Closest named color: Charcoal (#264653). oklch(37.2% 0.056 220.7), rgb(23, 71, 85).
Aa
White text reads best on this color (10.15:1).
About this color
#174755 is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.056 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.013 away. White text reads best on it, at 10.15:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.06:1 |
| White text | 10.15:1 |
Values
| HEX | #174755 |
| RGB | rgb(23, 71, 85) |
| HSL | hsl(194, 57%, 21%) |
| OKLCH | oklch(37.2% 0.056 220.7) |
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 #174755 | 10.15:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #174755 | 2.06:1 | Fails | Lc 10.6 | Not readable |
| #174755 text on white | 10.15:1 | AAA | Lc 93.3 | Preferred for body text |
| #174755 text on black | 2.06:1 | Fails | Lc -9.2 | 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
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A4C7D4
oklch(80.8% 0.042 222.4)
-
Step 400
400
#70ABBE
oklch(70.8% 0.067 220.2)
-
Step 500
500
#4695AE
oklch(63% 0.086 221.5)
-
Step 600
600
#1E7F99
oklch(55.5% 0.093 220.7)
-
Step 700
700
#0D6B83
oklch(49% 0.087 221.3)
-
Step 800
800
#12586A
oklch(42.8% 0.071 219.8)
-
Step 900
900 (this color)
#174755
oklch(37.2% 0.056 220.7)
-
Step 950
950
#102A33
oklch(26.9% 0.036 223.3)
#174755 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) | #3F4556 | 0.047 |
| Deuteranopia (no green cones) | #363F55 | 0.041 |
| Tritanopia (no blue cones) | #004C4B | 0.030 |
| Achromatopsia (no color) | #414141 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174755
#174755
oklch(37.2% 0.056 220.7)
- #5A3629
#5A3629
oklch(37.3% 0.056 40.6)
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 #174755, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.013
- Dark Grey Blue #29465B ΔE 0.022
- Dark Teal #014D4E ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.038
- Dark Slate Gray #2F4F4F ΔE 0.041
- Midnight Green #073B4C ΔE 0.044
- Deep Teal #00555A ΔE 0.044
- Dark Blue Green #005249 ΔE 0.049
Use #174755 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.