#174153
Closest named color: Dark Blue Grey (#1F3B4D). oklch(35.5% 0.056 229.6), rgb(23, 65, 83).
Aa
White text reads best on this color (10.95:1).
About this color
#174153 is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.056 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.020 away. White text reads best on it, at 10.95:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.91:1 |
| White text | 10.95:1 |
Values
| HEX | #174153 |
| RGB | rgb(23, 65, 83) |
| HSL | hsl(198, 57%, 21%) |
| OKLCH | oklch(35.5% 0.056 229.6) |
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 #174153 | 10.95:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #174153 | 1.91:1 | Fails | Lc 8.8 | Not readable |
| #174153 text on white | 10.95:1 | AAA | Lc 95.1 | Preferred for body text |
| #174153 text on black | 1.91:1 | Fails | Lc -7.5 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CADCE6
oklch(88.4% 0.024 231.9)
-
Step 300
300
#A6C6D7
oklch(80.9% 0.042 231.1)
-
Step 400
400
#74A9C2
oklch(70.7% 0.067 229.1)
-
Step 500
500
#4D93B3
oklch(63.1% 0.085 229.9)
-
Step 600
600
#2C7D9F
oklch(55.6% 0.093 229.9)
-
Step 700
700
#1D6988
oklch(49% 0.087 230.1)
-
Step 800
800
#1B566E
oklch(42.7% 0.071 229.2)
-
Step 900
900 (this color)
#174153
oklch(35.5% 0.056 229.6)
-
Step 950
950
#122A34
oklch(27.1% 0.035 227.4)
#174153 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) | #384054 | 0.039 |
| Deuteranopia (no green cones) | #2F3A53 | 0.033 |
| Tritanopia (no blue cones) | #004647 | 0.034 |
| Achromatopsia (no color) | #3C3C3C | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174153
#174153
oklch(35.5% 0.056 229.6)
- #533320
#533320
oklch(35.5% 0.055 50.9)
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 #174153, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.020
- Charcoal #264653 ΔE 0.024
- Midnight Green #073B4C ΔE 0.026
- Dark Grey Blue #29465B ΔE 0.029
- Prussian Blue #1D3557 ΔE 0.042
- Onyx #343A40 ΔE 0.044
- Dark Teal #014D4E ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.052
Use #174153 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.