#305164
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.8% 0.05 235), rgb(48, 81, 100).
Aa
White text reads best on this color (8.44:1).
About this color
#305164 is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.050 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.035 away. White text reads best on it, at 8.44:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.48:1 |
| White text | 8.44:1 |
Values
| HEX | #305164 |
| RGB | rgb(48, 81, 100) |
| HSL | hsl(202, 35%, 29%) |
| OKLCH | oklch(41.8% 0.05 235) |
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 #305164 | 8.44:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #305164 | 2.48:1 | Fails | Lc 15.0 | Not readable |
| #305164 text on white | 8.44:1 | AAA | Lc 89.0 | Fine for body text |
| #305164 text on black | 2.48:1 | Fails | Lc -13.2 | 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 800.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#CFDBE2
oklch(88.4% 0.016 233)
-
Step 300
300
#AFC4D1
oklch(80.9% 0.029 234.9)
-
Step 400
400
#85A6BA
oklch(70.7% 0.047 234.9)
-
Step 500
500
#6590A9
oklch(63.1% 0.06 234.5)
-
Step 600
600
#4C7A94
oklch(55.7% 0.065 234.4)
-
Step 700
700
#3D667E
oklch(49% 0.06 235.5)
-
Step 800
800 (this color)
#305164
oklch(41.8% 0.05 235)
-
Step 900
900
#2D4553
oklch(37.7% 0.038 234.8)
-
Step 950
950
#1A2931
oklch(27.1% 0.025 232.2)
#305164 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) | #485065 | 0.032 |
| Deuteranopia (no green cones) | #414B64 | 0.027 |
| Tritanopia (no blue cones) | #165657 | 0.039 |
| Achromatopsia (no color) | #4D4D4D | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305164
#305164
oklch(41.8% 0.05 235)
- #624532
#624532
oklch(41.7% 0.05 54.1)
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 #305164, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.037
- Deep Teal #00555A ΔE 0.040
- Charcoal #264653 ΔE 0.044
- YInMn Blue #415A77 ΔE 0.046
- Petrol #005F6A ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.054
- Dark Teal #014D4E ΔE 0.055
Use #305164 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.